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List of Muslim philosophers
List of Muslim philosophers
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Muslim philosophers both profess Islam and engage in a style of philosophy situated within the structure of the Arabic language and Islam, though not necessarily concerned with religious issues.[1] The sayings of the companions of Muhammad contained little philosophical discussion.[a][3] In the eighth century, extensive contact with the Byzantine Empire led to a drive to translate philosophical works of Ancient Greek Philosophy (especially the texts of Aristotle) into Arabic.[3][4]

The ninth-century Al-Kindi is considered the founder of Islamic peripatetic philosophy (800 CE – 1200 CE).[4] The tenth-century philosopher al-Farabi contributed significantly to the introduction of Greek and Roman philosophical works into Muslim philosophical discourse and established many of the themes that would occupy Islamic philosophy for the next centuries; in his broad-ranging work, his work on logic stands out particularly.[4] In the eleventh century, Ibn Sina, one of the greatest Muslim philosophers ever,[4] developed his own unique school of philosophy known as Avicennism which had strong Aristotelian and Neoplatonist roots. Al-Ghazali, a famous Muslim philosopher and theologian, took the approach to resolving apparent contradictions between reason and revelation.[5] He understood the importance of philosophy and developed a complex response that rejected and condemned some of its teachings, while it also allowed him to accept and apply others.[5] It was al-Ghazali's acceptance of demonstration (apodeixis) that led to a much more refined and precise discourse on epistemology and a flowering of Aristotelian logic and metaphysics in Muslim theological circles.[5] Averroes, the last notable Muslim peripatetic philosopher, defended the use of Aristotelian philosophy against this charge; his extensive works include noteworthy commentaries on Aristotle.[2][3] In the twelfth century, the philosophy of illumination was founded by Shahab al-Din Suhrawardi. Although philosophy in its traditional Aristotelian form fell out of favor in much of the Arab world after the twelfth century, forms of mystical philosophy became more prominent.[1]

After Averroes, a vivid peripatetic philosophical school persisted in the eastern Muslim world during the Safavid Empire which scholars have termed as the School of Isfahan. It was founded by the Shia philosopher Mir Damad and developed further by Mulla Sadra and others.[2]

List

[edit]
Name Image Origin Period CE School of Sect Philosophy
Al-Kindi Iraqi 801–873 He was the first of the Muslim peripatetic philosophers, and was considered the "father of Arabic philosophy" and known by the name "The Philosopher of The Arabs".[6][7][8] He was famous for promotion of Greek and Hellenistic philosophy in the Muslim world.[9] One of his main concerns was to show the compatibility of philosophy and speculative theology. However, he would prefer the revelation to reason, for he believed it guaranteed matters of faith that reason could not uncover.[9]
Muhammad ibn Zakariya al-Razi Persia (Iran) c. 865–925 There are contradictory views about his faith. Some, such as ibn Abi Osayba, knew him as a believer, but some, like Abu Hatam and Biruni, knew him as an unbeliever. A philosopher whose theory of the soul, explained in The Metaphysics, was derived from Islam in which he explained how the soul finds its way to salvation and freedom.[10] In his Philosophical Biography, al-Razi defended his philosophical lifestyle, emphasizing that, rather than being self-indulgent, man should utilize his intellect, and apply justice in his life. His defense against his critics is also a book entitled Al Syrat al Falsafiah (The Philosophical Approach).[10][11] He was also an early chemist.[12]
Al-Farabi Fārāb 872–951 Peripatetic Al-Farabi along with Ibn Sina and Averroes have been recognized as Peripatetics or rationalists among Muslims.[13][14][15] He tried to gather the ideas of Plato and Aristotle in his book "The gathering of the ideas of the two philosophers".[16] He was known as "the second master" of philosophy (Aristotle being the first), and his work was dedicated to both reviving and reinventing the Alexandrian philosophical thought, to which his teacher, Yuhanna bin Haylan belonged.[17]
Abu Yaqub al-Sijistani Persia ?–971 Inspired by neoplatonism, "his cosmology and metaphysics develop a concept of God as the one beyond both being and non-being."[18] Intellect which is the first being created by God, he believes, does not disintegrate, and the purpose of the religion is to "reorient the soul toward its true higher self and ultimately to return to its original state."[18][19][20][21]
Abu al-Hassan al-Amiri Persia ?–992 While opposing the kind of philosophy which is regarded as independent of revelation, he sought to find areas of agreement between different Islamic sects.[22][23] Chapter 1 and 7 of his book al-I'lam bi manaqib al-Islam (An Exposition on the Merits of Islam) has been translated into English under the titles The Quiddity of Knowledge and the Appurtenances of its Species[24] and The Excellences of Islam in Relation to Royal Authority.[25] His other book Kitab al-amad 'ala'l-abad (On the Afterlife)[26] also has an English translation.
Ebn Meskavayh Persia 932–1030 A Neoplatonist who wrote the first major Islamic work on philosophical ethics, entitled Tahdhib al-akhlaq (Refinement of Morals), he distinguished between personal ethics and the public realm and contrasted the redemptive nature of reason with the luring trait of nature.[27]
Al-Maʿarri Syria 973–1058 Pessimist A pessimistic freethinker, he attacked dogmas of religion.[28] His Unnecessary Necessity (Luzūmiyyāt) shows how he saw the business of living. His other work The Epistle of Forgiveness (Risālat al-Ghufrān) depicts his visiting with the Arab poets of the pagan period, in paradise and because of the aspect of conversing with the deceased in paradise, the Risālat al-Ghufrān has been compared to the Divine Comedy of Dante[29] which came hundreds of years after.
Ibn Sina (Avicenna)
Khorāsān

Persia

980–1037 Peripatetic Regarded as one of the most significant thinkers and writers of the Islamic Golden Age,[30] his distinction between existence and essence his theory of the nature of the soul in particular, influenced the medieval Europe. His proof of The Existence of God known as The Proof of The Truthful is one of the greatest arguments for the existence of God. His psychology and theory of knowledge influenced William of Auvergne, Bishop of Paris and Albertus Magnus, while his metaphysics was influential on the philosophy of Thomas Aquinas and his philosophy influenced The scholastic tradition.[31]
Hamid al-Din al-Kirmani Persia (Iran) 996–1021 His major work the Rahat al-aql (Peace of Mind) explains how to attain the eternal life of the mind and reason, in a changing world. Al-Aqwal al-dhahabiya, (refuting al-Razi's argument against the necessity of revelation) and Kitab al-riyad (about the early Isma'ili cosmology) are among his other works.[32]
Nasir Khusraw Persia (Iran) 1004–1088 His Knowledge and Liberation consists of a series of 30 questions and answers about his time's main issues, from the world's creation to human free will and culpability after death.[33] Rawshana-i-nama (Book of Enlightenment), and the Sa'datnama (Book of Felicity) are also among his works.
Ibn Zafar al-Siqilli Sicily (Italy) 1104–1170 He was an Arab-Sicilian philosopher and polymath often called "Niccolò Machiavelli's Arab Precursor" for his political insights. His philosophy, particularly in his magnum opus, Sulwān al-Muṭā (Arabic: سلوان المطاع, lit.'Consolation for the Ruler'), emphasized practical wisdom and strategies for rulers to navigate hostility and maintain authority.[34][35][36][37]
Al-Ghazali Persia (Iran) 1058–1111 Sufi/Ashari His main work The Incoherence of the Philosophers made a turn in Islamic epistemology. His encounter with skepticism made him believe that all causative events are not products of material conjunctions but are due to the Will of God. Later on, in the next century, Averroes's rebuttal of al-Ghazali's Incoherence became known as The Incoherence of the Incoherence.[38]
Avempace Andalusia (Spain) 1095–1138 His main philosophical idea is that the human soul could become one with the Divine through a hierarchy starting with sensing of the forms (containing less and less matter) to the impression of Active Intellect. His most important philosophical work is Tadbīr al-mutawaḥḥid (The Regime of the Solitary).[39]
Ibn Tufail Andalusia

(Spain)

1105–1185 His work Hayy ibn Yaqdhan, is known as The Improvement of Human Reason in English and is a philosophical and allegorical novel that tells the story of a feral child named Hayy who is raised by a gazelle and is living alone without contact with other human beings. This work is continuing Avicenna's version of the story. It is considered as a response to al-Ghazali's The Incoherence of the Philosophers, which had criticized Avicenna's philosophy.[40]
Averroes Spain

(Andalusia)

1126–1198 Peripatetic Being described as "founding father of secular thought in Western Europe",[41][42] He was known by the nickname the Commentator for his precious commentaries on Aristotle's works. His main work was The Incoherence of the Incoherence in which he defended philosophy against al-Ghazali's claims in The Incoherence of the Philosophers. His other works were the Fasl al-Maqal and the Kitab al-Kashf.[41][42]
Afdal al-Din Kashani Persia (Iran) ?–1213 He was involved in explaining the salvific power of self-awareness.[43][failed verification] That is: "To know oneself is to know the everlasting reality that is consciousness, and to know it is to be it."[43][failed verification] His ontology is interconnected with his epistemology, as he believes a full actualization of the potentialities of the world is only possible through self-knowledge.[43][failed verification]
Najmuddin Kubra Persia 1145–1220 Sufism As the founder of the Kubrawiyya Sufi order,[44] he is regarded as a pioneer of the Sufism. His books discuss dreams and visionary experience, among which is a Sufi commentary on the Quran.[45]
Fakhr al-Din al-Razi Persia (Iran) 1149–1209 Ashari His major work Tafsir-e Kabir included many philosophical thoughts, among which was the self-sufficiency of the intellect. He believed that proofs based on tradition hadith could never lead to certainty but only to presumption. Al-Razi's rationalism "holds an important place in the debate in the Islamic tradition on the harmonization of reason and revelation."[46]
Shahab al-Din Suhrawardi Persia (Iran) 1155–1191 Sufi As the founder of Illuminationism, an important school in Islamic mysticism, The "light" in his "Philosophy of Illumination" is a divine source of knowledge which has significantly affected Islamic philosophy and esoteric knowledge.[47][48]
Ibn Arabi Spain

(Andalusia)

1165–1240 Sufi Known by names like "Shaykh al-Akbar" (The Greatest Master), He was an Arab Andalusian Sufi mystic whose work Fusus al-Hikam (The Ringstones of Wisdom) can be described as a summary of his mystical beliefs concerning the role of different prophets in divine revelation. He is seen as the greatest Sufi Metaphysician due to his works like Al-Futuhat al-Makkiyya and Fusus al-Hikam [49][50][51]
Nasir al-Din al-Tusi Persia (Iran) 1201–1274 Peripatetic As a supporter of Avicennian logic he was described by Ibn Khaldun as the greatest of the later Persian scholars.[52] Corresponding with Sadr al-Din al-Qunawi, the son-in-law of Ibn al-'Arabi, he thought mysticism, as disseminated by Sufi principles of his time, was not appealing to his mind so he wrote his own book of philosophical Sufism entitled Awsaf al-Ashraf (The Attributes of the Illustrious).
Sadr al-Din al-Qunawi Persia (Iran) 1207-1274 Sufi one of the most influential thinkers in mystical or Sufi philosophy. He played a pivotal role in the study of knowledge, or epistemology, which in his context referred specifically to the theoretical elaboration of mystical/intellectual insight. He combined a highly original mystic-thinker, Muḥyī al-Dīn Ibn 'Arabī (1165-1240 CE/560-638 AH), whose arcane teachings Qūnavī codified and helped incorporate into the burgeoning pre-Ottoman intellectual tradition, on the one hand, with the logical/philosophical innovations of Ibn Sīnā (Lat., Avicenna), on the other. [53]
Rumi Persia 1207–1273 Sufi Described as the "most popular poet in America",[54] he was an evolutionary thinker, in that he believed that all matter after devolution from the divine Ego experience an evolutionary cycle by which it return to the same divine Ego,[55] which is due to an innate motive which he calls love. Rumi's major work is the Maṭnawīye Ma'nawī (Spiritual Couplets) regarded by some Sufis as the Persian-language Qur'an.[56] His other work, Fihi Ma Fihi (In It What's in It), includes seventy-one talks given on various occasions to his disciples.[57]
Ibn al-Nafis Damascus

(Syria)

1213–1288 His Al-Risalah al-Kamiliyyah fil Siera al-Nabawiyyah orTheologus Autodidactus is said to be the first theological novel in which he attempted to prove that the human mind can deduce the truths of the world through reasoning.[58] He described this book as a defense of "the system of Islam and the Muslims' doctrines on the missions of prophets, the religious laws, the resurrection of the body, and the transitoriness of the world".[59]
Qotb al-Din Shirazi Persia (Iran) 1217–1311 He was a Sufi from Shiraz who was famous for his commentary on Hikmat al-ishraq of Suhrawardi. His major work is the Durrat al-taj li-ghurratt al-Dubaj (Pearly Crown) which is an Encyclopedic work on philosophy including philosophical views on natural sciences, theology, logic, public affairs, ethics, mysticism, astronomy, mathematics, arithmetic, and music.[60]
Ibn Sabin Andalusia

(Spain)

1236–1269 He was a Sufi philosopher, the last philosopher of the Andalus, and was known for his replies to questions from Frederick II, the ruler of Sicily. His school is a mixture of philosophical and Gnostic thoughts.[61]
Sayyid Haydar Amuli Persia 1319–1385 As the main commentator of the Ibn Arabi's mystic philosophy and the representative of Persian Imamah theosophy, he believes that the Imams who were gifted with mystical knowledge were not just guides to the Shia Sufis. He was both a critic of Shia whose religion was confined to legalistic system and Sufis who denied certain regulations issued from the Imams.[62]
Taftazani Persia 1322–1390 Al-Taftazani's treatises, even the commentaries, are "standard books" for students of Islamic theology. His papers have been called a "compendium of the various views regarding the great doctrines of Islam".[63]
Ibn Khaldun Tunisia 1332–1406 Ashari He is known for his The Muqaddimah which Arnold J. Toynbee called "a philosophy of history which is undoubtedly the greatest work of its kind."[64] Ernest Gellner considered Ibn Khaldun's definition of government, "an institution which prevents injustice other than such as it commits itself", the best in the history of political theory.[65] His theory of social conflict contrasts the sedentary life of city dwellers with the migratory life of nomadic people, which would result in conquering the cities by the desert warriors.[66]
Abdul Karim Jili Iraq 1366–1424 Sufi Jili was the primary systematizer and commentator of Ibn Arabi's works. His Universal Man explains Ibn Arabi's teachings on reality and human perfection, which is among the masterpieces of Sufi literature.[67][68] Jili thought of the Absolute Being as a Self, which later on influenced Muhammad Iqbal.[69]
Sheikh Noor ud-Din Noorani
Kashmir (India) 1377-1438 Sufi One of the greatest Sufi saints to come out of the Indian Sub-Continent, he is known by names like Sheikh ul-Alam (The Master of The World) and Alamdar-e-Kashmir (Standard bearer of Kashmir). His sayings known as "Shruks" have shaped the identity of Kashmir for over 600 years. He is the founder of Rishi Sufi order, The Native Sufi Order of Kashmir. [70]
Jami Persia (Iran) 1414–1492 Sufi His Haft Awrang (Seven Thrones) includes seven stories, among which Salaman and Absal tells the story of a sensual attraction of a prince for his wet-nurse,[71] through which Jami uses figurative symbols to depict the key stages of the Sufi path such as repentance.[72][73] The mystical and philosophical explanations of the nature of divine mercy, is also among his works.[74]
Shaykh Yaqub Sarfi Kashmiri Kashmir (India) 1521-1595 Sufi A student of Jami and known by the name "Jami-as-Sani" (second Jami), he is one of the most influential figures in Kashmir. He was known for his vast knowledge of Islamic jurisprudence, Quranic exegesis, and Hadith studies, as well as his significant contributions to Persian and Sufi poetry. His notable works include Matlabul Talibin-fi-Tafsir-i-Kalam-i-Rab-Ul-Almin, a commentary on the Quran. [75]
Bahāʾ al-dīn al-ʿĀmilī Levant, Jabal Amel 1547–1621 Regarded as a leading scholar and mujaddid of the seventeenth century,[43] he worked on tafsir, hadith, grammar and fiqh (jurisprudence).[43] In his work Resāla fi’l-waḥda al-wojūdīya (Exposition of the concept of "Unity of Existences"), he states that the Sufis are the true believers, "calls for an unbiased assessment of their utterances, and refers to his own mystical experiences."[43][76]
Mir Damad Persia (Iran) 1561–1631 Professing in the Neoplatonizing Islamic Peripatetic traditions of Avicenna and Suhrawardi, he was the main figure (together with his student Mulla Sadra), of the cultural revival of Iran. He was also the central founder of the School of Isfahan, and is regarded as the Third Teacher (mu'alim al-thalith) after Aristotle and al-Farabi.[77] Taqwim al-Iman (Calendars of Faith), Kitab Qabasat al-Ilahiyah (Book of the Divine Embers of Fiery Kindling), Kitab al-Jadhawat (Book of Spiritual Attractions) and Sirat al-Mustaqim (The Straight Path) are among his 134 works.[78]
Mir Fendereski Persia (Iran) 1562–1640 He was trained in the works of Avicenna, and Mulla Sadra studied under him.[79] His main workal-Resāla al-ṣenāʿiya, is an examination of the arts and professions in perfect society, and combines a number of genres and subject areas such as political and ethical thought and metaphysics.[80]
Mulla Sadra Persia (Iran) 1571–1641 Shia According to Oliver Leaman, Mulla Sadra is the most important influential philosopher in the Muslim world in the last four hundred years.[81][82] He is regarded as the master of Ishraqi school of Philosophy who combined the many areas of the Islamic Golden Age philosophies into what he called the Transcendent Theosophy. He brought "a new philosophical insight in dealing with the nature of reality" and created "a major transition from essentialism to existentialism" in Islamic philosophy.[83] He also created for the first time a "distinctly Muslim school of Hikmah based especially upon the inspired doctrines which form the very basis of Shiism," especially what contained in the Nahj al-Balagha.[84]
Qazi Sa’id Qumi Persia (Iran) 1633–1692 He was the pupil of Rajab Ali Tabrizi, Muhsen Feyz and Abd al-Razzaq Lahiji, and wrote comments on the Theology attributed to Aristotle, a work which Muslim philosophers have always continued to read. His commentaries on al-Tawhid by al-Shaykh al-Saduq is also famous.[85]
Shah Waliullah India 1703–1762 He attempted to reexamine Islamic theology in the view of modern changes. His main work The Conclusive Argument of God is about Muslim theology and is still frequently referred to by new Islamic circles. Al-Budur al-bazighah (The Full Moons Rising in Splendor) is another work of his in which he explains the basis of faith in place of rational and traditional arguments.[86][87]
Syed Ameer Ali India 1849–1928 Modernist Sir Syed Ameer Ali was a British-Indian scholar achieving order of the star of India. He was one of the leading Islamic scholars India who tried to bring modernity in Islam.[88] Instead of revolting against British Empire, he tried to popularize modern education such as learning English language. Two of his most famous books are – The Spirit of Islam and Short History Of The Saracens.[89]
Muhammad Iqbal
(British India)

Pakistan

1877–1938 Modernist/

Sufi

Other than being an eminent poet, he is recognized as the "Muslim philosophical thinker of modern times".[90] He wrote two books on the topic of The Development of Metaphysics in Persia and The Reconstruction of Religious Thought in Islam[91] In which he revealed his thoughts regarding Islamic Sufism explaining that it triggers the searching soul to a superior understanding of life.[91] God, the meaning of prayer, human spirit and Muslim culture are among the other issues discussed in his works.[91]
Seyed Muhammad Husayn Tabatabaei Persia (Iran) 1892–1981 Shia He is famous for Tafsir al-Mizan, the Quranic exegesis. His philosophy is centered on the sociological treatment of human problems.[92] In his later years he would often hold study meetings with Henry Corbin and Seyyed Hossein Nasr, in which the classical texts of divine knowledge and gnosis along with what Nasr calls comparative gnosis were discussed. Shi'a Islam, The Principles of Philosophy and the Method of Realism (Persian: Usul-i-falsafeh va ravesh-i-ri'alism) and Dialogues with Professor Corbin (Persian: Mushabat ba Ustad Kurban) are among his works.[92]
Ghulam Ahmed Perwez Pakistan 1903–1985 Modernist/

Quranist

He was a famous theologian from Pakistan inspired by Muhammad Iqbal.[93] Being a protege of Allama Muhammad Iqbal his main focus was to separate between "Deen" and "Madhab". According to him, Islam was revealed as Deen which's main purpose was to create a successful and happy society.[94] He rejected the idea of a state being ruled by Islamic scholars, although he also criticized western secularism.[95] He firmly believed that Islam isn't based on blind faith but rational thinking. His most famous book is "Islam: A Challenge to Religion".
Abul A'la Maududi Pakistan 1903–1979 His major work is The Meaning of the Qur'an in which he explains that The Quran is not a book of abstract ideas, but a Book which contains a message which causes a movement.[96] Islam, he believes, is not a 'religion' in the sense this word is usually comprehended, but a system encompassing all areas of living.[97] In his book Islamic Way of Life, he largely expanded on this view.
Henry Corbin France 1903–1978 He was a philosopher, theologian and professor of Islamic Studies at the Sorbonne in Paris where he encountered Louis Massignon, and it was he who introduced Corbin to the writings of Suhrawardi whose work affected the course of Corbin's life.[98] In his History of Islamic Philosophy, he refuted the view that philosophy among the Muslims came to an end after Averroes, showed rather that a vivid philosophical activity persisted in the eastern Muslim world – especially Iran.[98]
Abdel Rahman Badawi Egypt 1917–2002 He adopted existentialism since he wrote his Existentialist Time in 1943. His version of existentialism, according to his own description, differs from Heidegger's and other existentialists in that it gives preference to action rather than thought. in his later work, Humanism And Existentialism In Arab Thought, however, he tried to root his ideas in his own culture.[99][100]
Morteza Motahhari Persia (Iran) 1919–1979 Shia Considered among the important influences on the ideologies of the Islamic Republic,[101] he started from the Hawza of Qom. Then he taught philosophy in the University of Tehran for 22 years. Between 1965 and 1973, however, he gave regular lectures at the Hosseiniye Ershad in Northern Tehran, most of which have been turned into books on Islam, Iran, and historical topics.[102]
Isma'il Raji al-Faruqi Mandatory Palestine 1921–1986 Sunni Renowned for his contributions to the concepts of Tawhid, meta-religion, and the Islamization of knowledge. His key works include Al-Tawhid: Its Implications for Thought and Life, Christian Ethics, and The Cultural Atlas of Islam. Al-Faruqi’s scholarship emphasized the unity of divine principles and holistic knowledge across disciplines.[103][104][105]
Mohammad-Taqi Ja'fari Persia (Iran) 1923–1998 Shia He wrote many books on a variety of fields, the most prominent of which is his 15-volume Interpretation and Criticism of Rumi's Masnavi, and his unfinished, 27-volume Translation and Interpretation of the Nahj al-Balagha. These works show his ideas in anthropology, sociology, moral ethics, philosophy and mysticism.
Mohammed Arkoun Algeria 1928–2010 Modernist He wrote on Islam and modernity trying to rethink the role of Islam in the contemporary world.[106] In his book Rethinking Islam: Common Questions, Uncommon Answers he offers his responses to several questions for those who are concerned about the identity crisis which left many Muslims estranged from both modernity and tradition. The Unthought In Contemporary Islamic Thought is also among his works.[106][107]
Israr Ahmed Pakistan 1932–2010 He is the author of Islamic Renaissance: The Real Task Ahead in which he explains the theoretical idea of the Caliphate system, arguing that it would only be possible by reviving Iman and faith among the Muslims in general and intelligentsia in particular. This would, he argues, fill the existing gap between new sciences, and Islamic divine knowledge.[108]
Ali Shariati Persia (Iran) 1933–1977 Modernist/

Shia

Ali Shariati Mazinani (Persian: علی شریعتی مزینانی, 23 November 1933 – 18 June 1977) was an Iranian revolutionary and sociologist who focused on the sociology of religion. He is held as one of the most influential Iranian intellectuals of the 20th century[3] and has been called the "ideologue of the Iranian Revolution", although his ideas ended up not forming the basis of the Islamic Republic
Abdollah Javadi-Amoli Persia (Iran) 1933– Shia His works are dedicated to Islamic philosophy, especially Mulla Sadra's transcendent philosophy.[83] Tafsir Tasnim is his explanation of the Quran in which he follows Tabatabaei's Tafsir al-Mizan, in that he tries to interpret a verse based on other verses.[109] His other work As-Saareh-e-Khelqat is a discussion about the philosophy of faith and evidence of the existence of God.
Seyyed Hossein Nasr Persia (Iran) 1933– Sufi/Shia He is a major perennialist thinker. His works defend Islamic and perennialist doctrines and principles while challenging the theoretical underpinnings of modern science. He argues that knowledge has been desacralized in the modern period, that is, separated from its divine source—God—and calls for its resacralization through sacred traditions and sacred science. His environmental philosophy is expressed in terms of Islamic environmentalism and the resacralization of nature.
Sadiq Jalal al-Azm Turkey 1934–2016 Critic of Islam[110] He was working on Immanuel Kant, though, later in his life, he put greater emphasis on the Islamic world and its relationship to the West. He was also a supporter of human rights, intellectual freedom and free speech.[111]
Mohammad-Taqi Mesbah-Yazdi Persia (Iran) 1934–2021 Shia He is an Islamic Faqih who has also studied works of Avicenna and Mulla Sadra. He supports Islamic philosophy and in particular Mulla Sadra's transcendent philosophy. His book Philosophical Instructions: An Introduction to Contemporary Islamic Philosophy is translated into English.[112]
Mohammad Baqir al-Sadr Iraq 1935–1980 Shia He was an Iraqi Shia philosopher and founder of the Islamic Dawa Party. His Falsafatuna (Our Philosophy) is a collection of basic ideas concerning the world, and his way of considering it. These concepts are divided into two researches: The theory of knowledge, and the philosophical notion of the world.[113]
Mohammed Abed al-Jabri Morocco 1935–2010 Modernist His work Democracy, Human Rights and Law in Islamic Thought while showing the distinctive nationality of the Arabs, reject the philosophical discussion which have tried to ignore its democratic deficits. Working in the tradition of Avincenna and Averroes, he emphasizes that concepts such as democracy and law cannot rely on old traditions, nor could be import, but should be created by today's Arabs themselves.[114] The Formation of Arab Reason: Text, Tradition and the Construction of Modernity in the Arab World is also among his works.
Abdolkarim Soroush Persia (Iran) 1945– Shia/

Neoplatonist

Being interested in the philosophy of religion and the philosophical system of Rumi, his book the evolution and devolution of religious knowledge argues that "a religion (such as Islam) may be divine and unchanging, but our understanding of religion remains in a continuous flux and a totally human endeavor."[115][116]
Javed Ahmed Ghamidi Pakistan 1951– Modernist Javed Ahmed Ghamidi is a Pakistani theologian. He is regarded as one of the contemporary modernists of the Islamic world.[117] Like Parwez he also promotes rationalism and secular thought with deen.[118] Ghamidi is also popular for his moderate fatwas. Ghamidi also holds the view of democracy being compatible with Islam.[119]
Gary Legenhausen US 1953– Islam and Religious Pluralism is among his works in which he advocates "non-reductive religious pluralism".[120] In his paper "The Relationship between Philosophy and Theology in the Postmodern Age" he is trying to examine whether philosophy can agree with theology.[121]
Mostafa Malekian Persia (Iran) 1956– Shia He is working on Rationality and Spirituality in which he is trying to make Islam and reasoning compatible. His major work A Way to Freedom is about spirituality and wisdom.[122]
Insha-Allah Rahmati Persia (Iran) 1966– His fields of can be summarized as follows: Ethics and Philosophy of Religion and Islamic Philosophy. Most of his work in these three areas.
Shabbir Akhtar England 1960–2023 Neo-orthodox Analytical Philosophy This Cambridge-trained thinker is trying to revive the tradition of Sunni Islamic philosophy, defunct since Ibn Khaldun, against the background of western analytical philosophical method. His major treatise is The Quran and the Secular Mind (2007).
Tariq Ramadan Switzerland/

France

1962– Modernist Working mainly on Islamic theology and the place of Muslims in the West,[123] he believes that western Muslims must think up a "Western Islam" in accordance to their own social circumstances.[124]

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from Grokipedia
A list of Muslim philosophers catalogs individuals who professed and systematically explored , , logic, and , frequently integrating rational Hellenistic methods with Quranic principles and theological . This intellectual tradition emerged prominently in the 9th to 12th centuries under Abbasid patronage, where scholars translated and critiqued Greek texts, fostering advancements in demonstrative reasoning and metaphysical analysis that preserved ancient knowledge amid Europe's Dark Ages. Pioneering figures such as , deemed the inaugural Muslim peripatetic for adapting Aristotelian categories to , al-Farabi for his harmonizing Plato's with , for distinguishing from in his metaphysical hierarchy, and for defending philosophy's compatibility with revelation through , exemplify the era's synthesis of faith and reason. These contributions extended to empirical sciences, with philosophers like al-Razi advancing clinical observation and proposing , influencing subsequent European thought via Latin translations. Theological tensions, notably al-Ghazali's critique in The Incoherence of the Philosophers charging falasifa with occasionalism's denial, prompted a shift toward Sufi illuminationism and Ash'arite orthodoxy, yet philosophical inquiry persisted in Persian and Ottoman contexts, evolving into modern reinterpretations amid colonial encounters. Despite academic tendencies to marginalize this heritage in favor of secular narratives—evident in selective Western historiography that downplays Islamic mediation of Greek learning—these thinkers' causal analyses and logical rigor remain foundational to understanding premodern rationalism's global contours.

Scope and Definitions

Criteria for Inclusion as a Muslim Philosopher

To qualify as a Muslim philosopher, an individual must have professed adherence to , either through explicit declaration, observance of Islamic practices, or sustained intellectual activity within Muslim scholarly networks, ensuring their work emerges from or engages the Islamic civilizational context. This criterion excludes non-Muslims operating in Islamic lands, such as Christian or Jewish thinkers like Yahya ibn Adi, despite their contributions to philosophical discourse, as the focus remains on those whose religious identity aligns with . Philosophical contributions necessitate systematic treatment of core disciplines—metaphysics, , logic, , or —employing demonstrative reasoning akin to Hellenistic models, rather than reliance on scriptural alone or probabilistic dialectical methods characteristic of (kalām). Pioneering figures like al-Kindī (d. 873 CE), credited as the first Muslim philosopher for harmonizing Aristotelian logic with Quranic principles, exemplify this by producing original treatises on topics such as the and the soul's , drawing on translated Greek texts while subordinating reason to revelation. Similarly, later thinkers qualify if their works advance rational inquiry into existence, causality, and knowledge, as seen in al-Fārābī's (d. 950 CE) integrating Platonic ideals with prophetic governance. Originality and influence within the tradition further delineate inclusion, requiring not mere translation or commentary but innovative synthesis or critique, such as Avicenna's (Ibn Sīnā, d. 1037 CE) and essence-existence distinction, which reshaped metaphysical debates across Islamic and European thought. Scholarly consensus, drawn from historical analyses, emphasizes works produced in or Persian under Islamic patronage from the onward, though later Ottoman or Safavid figures are included if they revive or adapt these rational methods amid theological dominance. Controversies arise over boundary cases, like al-Ghazālī (d. 1111 CE), whose Tahāfut al-Falāsifa critiques yet employs philosophical tools; inclusion hinges on demonstrable rational argumentation rather than outright rejectionism. Empirical verification demands primary textual evidence from surviving manuscripts or reliable biographical compendia, such as Ibn Abī Uṣaybiʿah's (13th century), which catalogs philosophers alongside physicians but distinguishes based on rational-scientific output. Modern listings prioritize peer-assessed editions of works, avoiding unsubstantiated attributions from hagiographic or polemical sources, which often inflate mystical or theological figures into philosophers due to institutional biases favoring religious over secular reason.

Distinction from Theologians, Mystics, and Scientists

In the Islamic intellectual tradition, falsafa (philosophy) is differentiated from kalam (theological rationalism) by its commitment to demonstrative syllogistic reasoning rooted in Aristotelian and Neoplatonic sources, seeking to derive metaphysical, ethical, and epistemological truths through unaided intellect while harmonizing with revelation where compatible. Theologians, or mutakallimun, prioritized dialectical methods to refute heterodox views and uphold scriptural orthodoxy, deriving core principles from Quranic revelation and prophetic authority rather than pure reason, often viewing philosophical autonomy as a threat to faith. This methodological divide manifested in critiques like Al-Ghazali's Tahafut al-Falasifa (c. 1095 CE), which accused philosophers of overreaching into theological domains such as divine attributes and resurrection using unproven rational assumptions. Mysticism (tasawwuf), exemplified by Sufi orders, contrasts with through its emphasis on direct experiential knowledge (ma'rifa) attained via spiritual , (remembrance of God), and intuitive unveiling (kashf), rather than discursive logic or empirical verification. While philosophers like (d. 950 CE) constructed hierarchical cosmologies via rational deduction, Sufis such as (d. 1240 CE) described unity of existence (wahdat al-wujud) through metaphorical and visionary insights, subordinating reason to heart-based purification and divine love. Overlaps occurred, as in Suhrawardi's illuminationist synthesis (d. 1191 CE) blending rational demonstration with mystical light epistemology, but pure maintained systematic proof over subjective ecstasy. Philosophers are set apart from natural scientists (tabi'iyyun) by their integration of empirical findings into broader ontological frameworks addressing , , and , as in Avicenna's (d. 1037 CE) distinction between necessary and contingent beings. Scientists, such as (d. 1040 CE), focused on observational experimentation and mathematical to explain phenomena like vision without delving into teleological metaphysics. Though figures like Al-Razi (d. 925 CE) contributed to both and philosophy, the former pursued practical utility and falsifiable hypotheses, while the latter interrogated first principles underlying nature's order. This demarcation preserved philosophy's speculative depth amid Islam's empirical scientific advances from the 8th to 13th centuries.

Historical Development

Early Formative Period (8th–10th Centuries)

The early formative period of Muslim (8th–10th centuries) coincided with the Abbasid caliphate's sponsorship of translations from Greek, Syriac, and Persian sources into , particularly in Baghdad's Bayt al-Hikma established under Caliph (r. 813–833 CE). This movement rendered key texts by , , , and Neoplatonists, enabling Muslim scholars to engage systematically with Hellenistic thought while subordinating it to Islamic monotheism and revelation. The era produced initial original syntheses rather than comprehensive systems, focusing on reconciling rational inquiry with orthodoxy amid tensions from traditionalist theologians. Abū Yūsuf Yaʿqūb ibn Isḥāq al-Kindī (c. 801–873 CE), dubbed the "Philosopher of the Arabs," spearheaded this integration. Born in to a noble Yemeni family, al-Kindī served in the , patronized by caliphs and , and oversaw translations of over 100 Greek works. He authored around 265 treatises, emphasizing 's role in demonstrating theological truths; in On First Philosophy, he adapted Aristotelian causation to prove a singular, incorporeal Creator, arguing that the universe's finite chain of causes necessitates an uncaused first cause. Al-Kindī's innovations included geometric explaining in rainbows and lenses, mathematical harmonics defining musical intervals via ratios, and early in cryptology for deciphering codes. His eclectic Aristotelianism-Neoplatonism prioritized demonstrative knowledge over empirical induction, influencing later peripatetics despite caliphal confiscation of his library in 847 CE for suspected unorthodoxy. Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī (854–925 CE), a Persian physician-philosopher from Ray, extended into toward . Proposing five co-eternal principles— (creator), (active), matter (passive), , and time—al-Rāzī viewed the universe's imperfections as evidence against divine prophets, asserting reason's sufficiency for and . In Spiritual Physick, he prescribed philosophical moderation between and for purification, equating with rational pursuit of moderated pleasures to achieve happiness. His critiques of religious compulsion and advocacy for freethinking drew accusations of from contemporaries like Abu Hatim al-Razi, yet his works on logic and metaphysics contributed to Baghdad's philosophical circles, bridging and metaphysics. These pioneers established philosophy's viability within , though their reliance on Greek sources provoked orthodox resistance, setting the stage for 10th-century systematizers like al-Fārābī. Al-Kindī and al-Rāzī's outputs totaled hundreds of volumes, with al-Rāzī's surviving philosophical texts emphasizing in science alongside metaphysical pluralism, verifiable through preserved Arabic manuscripts.

Peak of Rational Inquiry (11th–13th Centuries)

The 11th to 13th centuries witnessed the apex of systematic rational philosophy within Islamic intellectual traditions, centered on the Peripatetic (Mashsha'i) school, which integrated Aristotelian logic and metaphysics with Neoplatonic elements to explore causality, the nature of the soul, and the universe's structure through demonstrative reasoning. Building on Avicenna's foundational al-Shifa (completed c. 1027), thinkers emphasized empirical observation allied with deduction to reconcile apparent conflicts between philosophical necessity and religious revelation, producing works that prioritized intellectual autonomy in elite circles. This era's rationalism contrasted with rising Ash'arite occasionalism, yet flourished amid patronage in al-Andalus and the Abbasid courts, yielding commentaries that preserved and critiqued Greek texts while advancing original theses on eternal emanation and the active intellect. In , advanced and , positing al-ittisal (conjunction) with the as the path to human perfection, independent of societal norms, through ascetic isolation and rigorous self-purification. His Tadbir al-Mutawahhid outlined a solitary regimen for philosophical ascent, influencing successors by prioritizing introspective reason over prophetic imitation for the philosophically adept. Similarly, (d. 1185 CE) illustrated rational self-discovery in his allegorical novel Hayy ibn Yaqzan (c. 1160s), depicting a child's unaided progression from sensory to mystical union with the divine, affirming philosophy's capacity to verify religious truths without scripture. Ibn Rushd (Averroes, 1126–1198 CE), the era's preeminent rationalist, authored over 100 works, including detailed long commentaries on Aristotle's Organon, Physics, and Metaphysics, elucidating concepts like potentiality-actuality and the unmoved mover while defending philosophy's legitimacy under Islamic law. In Fasl al-Maqal (c. 1179), he argued that demonstrative knowledge, as true interpretation of scripture, obliges the philosopher, positing no inherent contradiction between reason and prophecy since both derive from divine origin. His Tahafut al-Tahafut (c. 1180) systematically refuted al-Ghazali's Tahafut al-Falasifa (c. 1095), upholding necessary causal connections against occasionalism by appealing to perpetual recurrence in nature as empirical evidence of determinism. Averroes' unicity of the intellect thesis, positing a single agent intellect for humanity, sparked debates but underscored rational inquiry's universal scope. Eastern developments sustained Avicenna's influence, with figures like (1201–1274 CE) synthesizing Peripatetic and Illuminationist ideas in al-As'ilah wa'l-Ajwabah, critiquing Avicenna's emanation while affirming reason's role in cosmology and ethics amid Mongol disruptions. Yet, by the late , orthodox theological dominance curtailed pure falsafa, as al-Ghazali's critiques gained traction, shifting emphasis toward Sufi over unbridled rationalism, though ' works persisted in transmitting Aristotelian frameworks to Latin via translations in Toledo (c. ).

Post-Classical Stagnation and Adaptation (14th–19th Centuries)

In the post-classical era, rationalist falsafa largely stagnated in Sunni-dominated regions, supplanted by Ash'arite , which employed logic instrumentally to defend orthodoxy rather than pursue independent metaphysical inquiry, a shift accelerated by the Mongol sack of in 1258 and subsequent political fragmentation that disrupted scholarly centers. Critics like Ibn Taymiyyah (d. 1328) further eroded peripatetic by condemning its perceived deviations from revelation, labeling much of Avicennian metaphysics as incompatible with prophetic tradition, though his own works incorporated rational argumentation against innovation (). This environment fostered adaptation through commentary traditions rather than innovation; for instance, Dawud al-Qaysari (d. 1350) commented extensively on Ibn Arabi's fusion of and , embedding rational analysis within mystical , while (1332–1406) advanced a causal of civilizations, attributing societal rise and decline to 'asabiyyah (group solidarity) and environmental factors, eschewing speculative cosmology for empirical patterns in historical data. In the , spanning the 14th to 19th centuries, philosophy persisted in curricula via handbooks like the Hidaya al-Hikma, emphasizing Aristotelian logic and ethics as tools for and , but original contributions were sparse, with scholars like Molla Fenari (d. 1431) producing fusus al-ta'wil on Avicenna's logic while aligning it with Sunni orthodoxy. Ottoman intellectuals adapted by integrating philosophical methods into debates, as seen in commentaries on , yet avoided bold metaphysics to evade charges of , resulting in a conservative synthesis that prioritized revelation over reason's autonomy; by the , such teaching declined amid administrative reforms favoring practical sciences. Shi'ite Persia under the Safavids (1501–1736) represented a of , where philosophy revived through illuminationist and theosophical schools, culminating in Mulla Sadra's (1571–1640) hikmat al-muta'aliyah, which resolved reason-revelation tensions by asserting existence's primacy (asalat al-wujud), rejecting essentialism for a dynamic of substantial motion (al-harakah al-jawhariyyah), wherein beings evolve gradationally toward divine unity, drawing on , Suhrawardi, and without subordinating intellect to fiat. This system influenced subsequent Persian thinkers like Haydar Amuli (d. ca. 1385) and (d. 1311, extending into 14th-century works), fostering a metaphysical realism that integrated empirical causation with . In the , adaptation manifested in efforts to harmonize philosophy with scriptural revivalism, as with (1703–1762), who critiqued excessive rationalism while employing dialectical methods to interpret cosmologically, positing a unity of human temperaments (mizaj) underlying social order and advocating economic equity rooted in Prophetic precedent to counter decay. His Hujjat Allah al-Baligha synthesized Sufi intuition, rationalism, and historical analysis, influencing 19th-century reformers, though it prioritized renewal (tajdid) over speculative innovation amid Mughal decline. Overall, this period's intellectual output, while voluminous in —estimated at thousands of commentaries—reflected causal pressures from and instability, yielding hybrid traditions rather than the foundational systems of prior centuries.

Modern Revival Attempts (20th–21st Centuries)

In the , Muslim intellectuals initiated efforts to revive philosophical traditions dormant since the medieval period, responding to Western , secular , and internal stagnation in rational inquiry. These attempts emphasized reconstructing Islamic thought through renewed (independent reasoning), integration of classical sources like and with contemporary , and critiques of both blind traditionalism and uncritical Western adoption. Key figures operated in regions like , , and the , often facing resistance from orthodox theologians who viewed as incompatible with . Muhammad Iqbal (1877–1938), a philosopher-poet from British India, spearheaded revival through his 1930 work The Reconstruction of Religious Thought in Islam, comprising lectures delivered between 1928 and 1930. Iqbal advocated dynamic selfhood (khudi) as the Quranic ideal for individual and communal progress, critiquing mechanistic views of the universe and static taqlid (imitation), while drawing on Bergsonian and Nietzschean will to reinterpret Islamic concepts like divine unity and . His philosophy aimed to empower Muslims against cultural decline, influencing modernist movements in and beyond. Seyyed Hossein Nasr (born 1933), an Iranian-American scholar, advanced the perennial philosophy tradition by promoting the continuity of hikmah (wisdom) schools, particularly transcendent theosophy (hikmat al-muta'aliyah) of (d. 1640). In from Its Origin to the Present (2006), Nasr documents the persistence of metaphysical inquiry in Shiite and Sufi circles, critiquing modern and as sources of , and urging a return to sacred knowledge integrating intellect, revelation, and intuition. Nasr's works, translated into multiple languages, have fostered global academic interest in Islamic esotericism. Fazlur Rahman (1919–1988), a Pakistani modernist, proposed a "double movement" in Islam and Modernity (1982): first, historical contextualization of Quranic verses to discern timeless ; second, reapplication to contemporary issues like and . Rejecting both literalism and , Rahman sought to revive Mu'tazilite adapted to pluralism and , influencing reformist thought despite controversies over his . In 21st-century , state-sponsored institutions like the Sadra Islamic Philosophy Research Institute, founded in 1992, systematize Mulla Sadra's , blending it with quantum physics and ecology in publications and conferences. This institutional revival contrasts with Arab world's dominance of Ash'arite , where philosophical efforts remain marginal amid Salafi critiques. Overall, these attempts highlight tensions between rational revival and , with limited mainstream adoption due to political Islam's prioritization of jurisprudence over metaphysics.

Philosophical Schools and Traditions

Peripatetic Tradition (Mashsha'iyyun)


The Peripatetic tradition, or Mashsha'iyyun, in adapted Aristotelian methodologies of logic, , and metaphysics to explore , substance, and the nature of the divine, often seeking harmony between rational inquiry and Quranic revelation. This school emphasized demonstrative proof over dialectical theology, influencing subsequent Islamic intellectual developments until critiques from figures like contributed to its marginalization. Key proponents built upon translations of Greek texts, prioritizing empirical and syllogistic reasoning to affirm God's existence as the and first cause.
Al-Kindi (c. 801–873), regarded as the inaugural figure of Islamic Peripatetic philosophy, integrated Aristotelian and Neoplatonic elements to defend , positing as the simple One from whom all multiplicity emanates. In On First Philosophy, he argued against the , asserting creation ex nihilo through divine will, and advanced and as extensions of philosophical method. His efforts to Arabize Greek sciences laid groundwork for later systematizers, though his works faced later orthodox opposition for perceived over-reliance on pagan sources. Al-Farabi (c. 870–950) systematized Peripatetic thought into a cohesive framework, earning the title "Second Teacher" after for his commentaries on logic and metaphysics. In treatises like The Attainment of Happiness and The Virtuous City, he outlined an ideal polity governed by prophetic intellect, linking to emanationist cosmology where governs human potentiality. His innovations in and underscored the tradition's breadth, reconciling Platonic ideals with Aristotelian realism while affirming prophecy's role in transcending pure reason. Ibn Sina (Avicenna, 980–1037) culminated the school's metaphysical synthesis, positing the necessary existent () as the whose is identical to its , resolving Aristotelian essence- distinctions. In The Healing (al-Shifa), a comprehensive , he detailed thought experiments to prove soul-body dualism and advanced proofs for 's unity via contingency. His modal influenced both Islamic and Latin , though critics contested his emanation theory for implying necessity in creation, diverging from voluntarist . Ibn Rushd (Averroes, 1126–1198) defended pure against Neoplatonic accretions and theological critiques, authoring extensive commentaries that clarified texts like Physics and Metaphysics. In The Incoherence of the Incoherence, he rebutted Al-Ghazali's attacks, upholding philosophy's compatibility with revelation through allegorical interpretation of scripture for the philosophically adept. His doctrine of the unity of intellect across individuals sparked Latin , emphasizing eternal cosmic cycles under divine causation while rejecting Avicennan emanation for stricter .

Illuminationist and Theosophical Schools (Ishraqi and Hikmat al-Muta'aliyah)

The Illuminationist (Ishraqi) school emerged in the late as a critique of the discursive dominant in Peripatetic philosophy, prioritizing direct intellectual intuition or "illumination" (ishraq) as the path to certain . Its founder, Shihab al-Din Yahya al-Suhrawardi (1154–1191), trained initially in Avicennan Peripateticism but rejected its overreliance on abstract logic in favor of experiential insight, drawing from ancient Persian, Platonic, and Zoroastrian sources alongside Islamic revelation. In his principal work, Hikmat al-Ishraq (Philosophy of Illumination), completed circa 1186, Suhrawardi constructed a metaphysics centered on light as the essence of reality: all beings are gradations of light emanating hierarchically from the supreme "Light of Lights" (God), with arising from the "presence" (hudur) of the knower to the known rather than mere conceptual abstraction. This framework posited a symbolic where sensory and intellectual faculties align through visionary ascent, influencing later mystical despite Suhrawardi's execution in in 1191 on charges of innovation () by authorities under . Prominent early adherents included Shams al-Din Muhammad al-Shahrazuri (fl. 13th century), author of a detailed commentary on Hikmat al-Ishraq, and (1236–1311), an astronomer-philosopher who integrated Ishraqi ontology with Peripatetic elements in works like Durus al-Akhbar al-Nafisah. The school's emphasis on esoteric wisdom preserved it amid orthodox theological pressures, particularly in Persianate regions, where it bridged rational inquiry and Sufi gnosis without fully subordinating reason to revelation. The Theosophical school, or Hikmat al-Muta'aliyah (Transcendent Wisdom), represents a 17th-century synthesis elevating Ishraqi illumination within a comprehensive metaphysical system. Developed by Sadr al-Din Muhammad al-Shirazi, known as (c. 1571–1640), during Iran's , it fused Avicennan essence-existence distinctions, Suhrawardi's light hierarchy, Ibn Arabi's unity of being (wahdat al-wujud), and Twelver Shi'i into a dynamic . In his encyclopedic Al-Hikma al-Muta'aliya fi-l-Asfar al-Aqliyya al-Arba'a (The Transcendent Philosophy of the Four Intellectual Journeys), spanning over 900,000 words and composed progressively from 1600 onward, argued for the primacy of existence (asalah al-wujud), where existence is the sole reality, intensifying through degrees from divine unity to material multiplicity, obviating essence as independently real. Central innovations include substantial motion (harakah jawhariyyah), positing continuous self-transformation in all entities toward perfection, and knowledge by presence extended to unify intellect, object, and knower in existential unity. Mulla Sadra's framework resolved apparent tensions between reason and by subordinating both to existential gradation, influencing Safavid intellectual centers like and . Key successors, such as Mulla Muhsin Fayd al-Kashani (1598–1680), expanded its theological applications, while Mulla Hadi Sabzevari (d. 1878) systematized it in Sharh al-Manzumah (Commentary on the Poem), adapting it to confront modern challenges while upholding its anti-materialist realism. This tradition persisted as a living Shi'i philosophical current, emphasizing causal realism in divine effusion and human ascent, distinct from stagnant orthodoxy. The Mu'tazila, an early Islamic theological school emerging in the CE, championed by subordinating scriptural interpretation to human reason, arguing that divine justice and unity necessitated logical defenses against anthropomorphic tendencies in popular piety. Founded around 720 CE by Wāṣil ibn ʿAṭāʾ (d. 748 CE) in , the school posited that reason could independently discern ethical truths, influencing their rejection of in favor of human and . Their methodology drew selectively from Greek logic while prioritizing Islamic doctrines, leading to systematic kalām (dialectical theology) that treated God's attributes as abstract rather than literal. Central to Mu'tazili thought were the uṣūl al-khamsa (five principles): tawḥīd (divine unity, denying corporealism in ), ʿadl (divine , implying cannot command or punish the innocent), al-waʿd wa-l-waʿīd (promise and threat of reward/), al-manzila bayna l-manzilatayn (the sinner's intermediate status between believer and unbeliever), and al-amr bi-l-maʿrūf wa-l-nahy ʿan al-munkar (). These axioms, formalized by later adherents, justified rational reinterpretation of Qurʾānic ambiguities, such as viewing eternal divine speech as uncreated but non-spatial. Key early figures included ʿAmr ibn ʿUbayd (d. 761 CE), who emphasized ethical , and Abū l-Hudhayl al-ʿAllāf (d. 841 CE), who integrated atomistic physics to explain under divine will, arguing accidents inhere momentarily in atoms to preserve free action. Al-Nazzām (d. 846 CE) advanced this by denying absolute rest in bodies, positing to reconcile divine with observable change. In the Basran branch, Abū ʿAlī al-Jubbāʾī (d. 915 CE) and his son Abū Hāshim (d. 933 CE) refined , introducing the concept of ḥāl (states) as modes inhering in substances without independent , which allowed nuanced defenses of divine amid human volition. ʿAbd al-Jabbār (d. 1025 CE), the school's most prolific systematizer, authored al-Mughnī fī abwāb al-tawḥīd wa-l-ʿadl, defending reason's primacy in —e.g., good acts are intrinsically obligatory, knowable pre-revelation—and critiquing occasionalism as undermining . Baghdadi Mu'tazila, like Bishr ibn al-Muʿtamir (d. 825 CE), focused on eschatological , insisting sensory experiences in the must align with principles. Despite state patronage under the Abbasid caliph al-Maʾmūn (r. 813–833 CE) via the miḥna (), the school's rationalist excesses, such as deeming grave sinners as unbelievers, fueled orthodox backlash, marginalizing it by the . Related rationalist traditions persisted in Sunni contexts through the Māturīdiyya, founded by Abū Manṣūr al-Māturīdī (d. 944 CE) in Samarqand, which balanced reason with revelation more conservatively than Mu'tazila. Al-Māturīdī's Kitāb al-Tawḥīd affirmed reason's role in confirming and , upholding (via kasb, human acquisition of acts) against fatalism while rejecting Mu'tazili extremes like the or intrinsic obligatoriness of acts. He advocated subjective faith as internal assent verifiable only by , promoting tolerance for diverse rational paths to truth and integrating logic to refute without negating tradition. This school influenced Hanafi jurisprudence in and Ottoman , providing a rationalist bulwark that preserved dialectical tools amid Ashʿarī dominance.

Critiques from Orthodoxy (Ash'ari and Ghazalian Influences)

The Ashʿarī school of theology, founded by Abū al-Ḥasan al-Ashʿarī (c. 874–936 CE), emerged as a response to the rationalist tendencies of the Muʿtazila, emphasizing divine omnipotence and the primacy of revelation over unaided reason in interpreting Islamic doctrine. Ashʿarīs critiqued philosophers (falāsifa) for subordinating scripture to Aristotelian logic, particularly in areas like metaphysics and causality, arguing that such approaches risked attributing independent efficacy to created entities, thereby limiting God's absolute will. This theological framework advanced , the doctrine that all events occur solely through God's continuous, direct intervention, denying any intrinsic causal necessity in nature. Abū Ḥāmid al-Ghazālī (1058–1111 CE), a prominent Ashʿarī and Sufi thinker, intensified these critiques in his Tahāfut al-Falāsifa (The Incoherence of the Philosophers, completed c. 1095 CE), a systematic refutation targeting the Peripatetic tradition of al-Fārābī (d. 950 CE) and Ibn Sīnā (Avicenna, d. 1037 CE). Al-Ghazālī identified twenty philosophical theses incompatible with orthodoxy, deeming three— the , God's inability to know particulars, and denial of bodily resurrection—as outright unbelief (kufr), while classifying seventeen others as innovations (bidʿa). He dismantled emanationist cosmology, which posited the universe as necessarily emanating from a divine intellect, asserting instead that creation is a voluntary ex nihilo, unsupported by demonstrative proof from the philosophers' own logic. Central to al-Ghazālī's assault was his rejection of necessary causation, a cornerstone of falsafa derived from Aristotelian principles; he contended that observed regularities between "cause" and "effect" (e.g., burning cotton) reflect divine (ʿāda), not metaphysical necessity, as constant conjunction alone cannot prove invariance without assuming God's unchanging will. This occasionalist view preserved miracles and divine intervention—such as the Qurʾānic —against philosophers' claims that uniform laws preclude them, while accusing the falāsifa of veiled by implying self-sustaining eternal principles akin to divine partners. Al-Ghazālī employed the philosophers' dialectical tools against them, exposing logical inconsistencies, such as their failure to reconcile an eternal world with a transcendent creator. These orthodox critiques, disseminated through Ashʿarī kalām and al-Ghazālī's influential works, fostered widespread suspicion of speculative philosophy in Sunni intellectual circles, associating it with theological deviance and prompting a shift toward and . By undermining confidence in secondary causation, they arguably constrained empirical inquiry, as natural processes were reframed as perpetual divine recreations rather than analyzable mechanisms, contributing to the marginalization of falsafa beyond select regions like . Later Ashʿarīs, such as Fakhr al-Dīn al-Rāzī (d. 1209 CE), echoed these positions, integrating limited within strict revelatory bounds but reinforcing the subordination of philosophy to .

Influences, Controversies, and Decline

External Influences: Greek, Persian, and Indian Sources

Islamic philosophy emerged through extensive translations of Greek texts into during the Abbasid era, particularly in the 8th and 9th centuries, enabling Muslim thinkers to engage directly with Aristotelian logic, metaphysics, and ethics as well as Platonic and Neoplatonic ideas. This translation movement, centered in , involved Syriac Christian scholars rendering works by , , and , which formed the foundation for peripatetic among figures like (d. 873 CE), who explicitly advocated harmonizing Greek rationalism with Quranic revelation. (d. 950 CE) further systematized Aristotelian political philosophy in works such as The Virtuous City, positioning as the "First Teacher" and himself as the "Second Teacher." Persian influences on Muslim philosophers stemmed primarily from pre-Islamic Sassanid intellectual traditions, including the , which preserved and transmitted Greek medical and philosophical knowledge before the Islamic conquest in the 7th century CE. Zoroastrian dualism and eschatological concepts, such as cosmic struggle between , subtly shaped later Islamic theological debates and Sufi , though direct philosophical lineages were limited compared to Greek imports. Prominent Persian-origin philosophers like (Ibn Sina, d. 1037 CE) and Al-Razi (d. 925 CE) integrated these cultural elements with Greek frameworks, emphasizing empirical and toward prophetic in Al-Razi's case, reflecting a Persian rationalist temperament. Indian sources exerted a more indirect influence on , mainly through translations of texts on mathematics, astronomy, and logic during the same Abbasid period, which informed theologians' dialectical methods. While core metaphysical systems remained Greek-oriented, parallels in nondualistic appear in Sufi thought, potentially echoing , as seen in the works of Al-Bistami (d. 874 CE), though explicit acknowledgments of Indian origins are absent. This influence was marginal relative to Greek dominance, with Indian contributions more pronounced in ancillary fields like medicine via texts such as the .

Internal Tensions: Reason vs. Revelation

The tension between reason and revelation in emerged prominently in the theological debates of the 8th and 9th centuries, pitting the rationalist Mu'tazila against the traditionalist Ash'ari school. The Mu'tazila, active from around 780 CE, advocated for the supremacy of reason in interpreting divine justice and attributes, asserting that moral truths could be discerned independently of revelation and that the was created rather than eternal to preserve God's transcendence. In contrast, the Ash'ari school, founded by (d. 936 CE), subordinated reason to revelation, emphasizing divine omnipotence and occasionalism—where causal events occur solely by God's direct will, rejecting Aristotelian necessary causation as limiting to God. This shift gained dominance by the 10th century, as Ash'ari theology integrated (dialectical theology) to defend orthodoxy, effectively curbing unchecked rationalism by aligning intellectual inquiry with scriptural authority. Peripatetic philosophers like (d. 950 CE) and (d. 1037 CE) sought to harmonize Greek with Islamic , positing that philosophical demonstration complemented prophetic truth, with reason accessible to elites and suited for the masses. However, this synthesis faced severe critique from Abu Hamid (d. 1111 CE) in his Tahafut al-Falasifa (Incoherence of the Philosophers, ca. 1095 CE), where he charged philosophers with heresy on three doctrines: the world's eternity, denial of bodily resurrection, and God's incapacity to know particulars. argued that true causality resides in God's habitual will, not natural necessity, undermining the philosophers' reliance on demonstrative reason over revealed texts. His work, drawing on Ash'ari premises, promoted Sufi mysticism and over falsafa, contributing to philosophy's marginalization in Sunni orthodoxy by portraying as incompatible with faith when it contradicted scripture. Ibn Rushd (Averroes, d. 1198 CE) mounted a defense in his Tahafut al-Tahafut (Incoherence of the Incoherence), asserting that philosophy achieves demonstrative certainty superior to dialectical theology and that apparent conflicts with revelation resolve through allegorical interpretation (ta'wil) reserved for qualified interpreters. He maintained that both reason and revelation stem from God, thus harmonious, with philosophy obligatory for those capable, as it unveils truths religion conveys exoterically. Despite this rigorous rebuttal, Averroes' advocacy had limited traction in the Islamic East, where Ghazali's influence prevailed, reinforcing revelation's primacy and restricting philosophy to subordinate roles in and rather than metaphysics. This unresolved tension—exemplified by later figures like Ibn Taymiyyah (d. 1328 CE) echoing Ghazali's critiques—fostered an environment where empirical and causal inquiry yielded to , impeding sustained philosophical progress.

Causal Factors in Philosophical Decline

The decline of philosophical inquiry in the Islamic world became evident after the , with a marked reduction in original works of falsafa (peripatetic philosophy) and a shift toward theological , commentary on earlier texts, or integration with Sufi , as documented in analyses of intellectual output from to . This stagnation contrasted with the prolific period from the 9th to 11th centuries, where philosophers like synthesized Greek, Persian, and Islamic thought; post-1200, production of philosophical treatises dropped sharply, with institutions prioritizing jurisprudence () and over rational metaphysics. A primary internal factor was the ascendancy of Ash'arite theology, which promoted occasionalism—the doctrine that all events occur directly by divine will without intermediary natural causes—effectively challenging Aristotelian central to falsafa. Al-Ghazali's Tahafut al-Falasifa (c. 1095 CE), critiquing philosophers on 20 propositions including the and denial of miracles via necessary causation, gained widespread acceptance among Sunni scholars, portraying philosophy as incompatible with revelation and leading to its marginalization in curricula. While defenders argue Ghazali preserved Islam from rationalist excess and philosophy persisted (e.g., in Ibn Rushd's response), empirical trends show his influence correlated with the subordination of falsafa to orthodoxy, as texts outnumbered philosophical ones by the 13th century. External shocks exacerbated this, notably the Mongol sack of in 1258 CE, which destroyed the Abbasid intellectual hub, including libraries housing thousands of manuscripts and killing scholars en masse, disrupting transmission chains for . Political fragmentation following the Abbasid collapse further eroded for philosophical pursuits, as regional dynasties favored military and religious consolidation over speculative inquiry. These factors interacted with institutional rigidification: post-12th century madrasas, empowered by religious , emphasized rote over dialectical , reflecting a broader of clerical authority that stifled innovation. Though some continuity occurred in Persianate regions under Ilkhanid , the overall causal chain— eroding rational foundations, invasions dismantling —yielded centuries of philosophical dormancy.

Legacy and Reception

Transmission to Western Thought

The primary mechanism for transmitting Muslim philosophical ideas to involved Latin translations of texts during the 12th and 13th centuries, facilitated by centers in and following the Christian reconquest of Muslim-held territories. In Toledo, after its capture in 1085, scholars accessed extensive libraries containing works synthesized from Greek sources with original Islamic contributions. The Toledo School of Translators, active from the late 12th century, systematically rendered key philosophical and scientific texts into Latin, including Avicenna's and metaphysical treatises, as well as Averroes' detailed . Translators like (c. 1114–1187) produced versions of Avicenna's , while Averroes' works, such as his Long Commentary on Aristotle's Metaphysics, appeared in Latin around 1225–1230, often via intermediate Hebrew translations. These efforts preserved Aristotelian logic, , and , augmented by Muslim innovations like Avicenna's distinction between and . This influx profoundly shaped , with (1225–1274) integrating ideas from these sources; he cited extensively in discussions of being and cited as "the Commentator" in over 500 references across his corpus, adapting their rational frameworks to while critiquing aspects like Averroes' unicity of intellect. The translations spurred Latin in the 13th–14th centuries, influencing figures like and fueling debates on reason's limits, though ecclesiastical condemnations in 1270 and 1277 at curtailed radical interpretations. Beyond philosophy, these transmissions advanced , , and astronomy in , bridging Hellenistic heritage through Islamic elaboration.

Contemporary Assessments and Criticisms

In the twentieth and twenty-first centuries, scholars like have positively assessed classical for its metaphysical depth, rooted in thinkers such as and Suhrawardi, as a counter to Western dualism and modern . Nasr emphasizes its perennial relevance, advocating revival through authentic study to preserve Islamic intellectual autonomy against Western influences. Critics, however, point to post-medieval stagnation, with philosophical traditions declining in much of the Sunni world by severing ties to orthodox training and broader inquiry. Contemporary scholarship attributes this partly to failures in institutionalizing sustained rational inquiry amid tensions between falsafa and , contrasting with Europe's empirical trajectory. Western assessments often credit Islamic philosophers for transmitting Aristotelian logic and natural philosophy but critique their subordination of reason to revelation, which limited experimental methodologies. Among modern Muslim voices, some echo al-Ghazali's historical refutations, rejecting falasifa innovations like the world's eternity as deviations from scriptural orthodoxy. Others decry contemporary Islamic philosophy's insufficient critical engagement with global traditions. Debates persist on causal factors, with recent analyses downplaying al-Ghazali's direct role in favor of broader socio-political disruptions.

References

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