Emmanuel Giovanni Salvatore Pietro Dimech, also known as Manwel Dimech (25 December 1860 – 17 April 1921) was a Maltese socialist, philosopher, journalist, writer, poet and social revolutionary. Born in Valletta and brought up in extreme poverty and illiteracy, Dimech spent significant portions of his early life in the Maltese prison system, mostly on charges of petty theft. At the age of seventeen, Dimech was arrested for the crime of involuntary murder, and sentenced to seventeen years in jail. After being thrown in jail, Dimech started to educate himself and became a man of letters.

Upon his release from prison, Dimech became a teacher and publisher, becoming a major figure in the public life of Malta. Dimech spoke freely among the social issues facing the populace of Malta, earning him great support and popular approval. However, the ideas espoused by Dimech caused him to come into conflict with both the Catholic Church and the colonial government of Malta. After the Governor of Malta grew frustrated by Dimech's growing support among the Maltese populace, he was permanently exiled to Sicily, Italy. Dimech later moved to British-controlled Egypt, as it was the closest territory controlled by Britain at the time. Despite pleas from high-ranking British officials, Dimech was refused permission to return to Malta, and he died in Egypt in 1921.

Manuel Dimech was born on 25 December 1860, at St John Street, Valletta, Malta, and baptised at the church of St Paul Shipwreck, Valletta. His family was poor and lived in a single room that was part of a common tenement house with over sixty people. His ancestors on his father's side were genuine artistic sculptors, though up till Dimech's birth his family had fallen on difficult times. During his childhood, Dimech's family moved residence twice, leaving Valletta for Qormi (today Santa Venera), and then moving to Msida. His father tried hard to make ends meet, but his weak health prevented any success in this endeavour. He died at the age of 37, leaving his widow to care for their ten young children, along with four from her previous marriage to her widow, Salvatore Testa (1832–1855).

Just a fortnight after his father's death the 13-year-old Dimech committed his first recorded crime of petty theft. He was a street urchin with no education, guidance or direction. For his first crime he was sent two days in a lockup. This experience did not stop him from delving deeper into a life of crime. Subsequently, he was to be sent nine more times to prison, sometimes for very serious crimes. Mostly it was for theft or burglary, but in 1878, when he was 17 years old, he committed involuntary murder, and was imprisoned for more than twelve years. In 1890, he was found guilty of forging counterfeit money (though he only traded it), and was imprisoned for a further seven years. He was released from prison in 1897 at the age of 36. In all, he was incarcerated for twenty years.

While in prison, Dimech began to learn how to read and write in 1877 at the age of 17. He studied various subjects, including literature, grammar, politics, history, philosophy, and religion. He learned multiple languages, including Maltese, English, French, and Italian during his incarceration. This linguistic knowledge later enabled him to work as a language teacher. Dimech also developed an interest in politics, focusing on the structural causes of poverty and social inequality. These pursuits later influenced his contributions to public life.

In prison Dimech had another kind of formation. During his last stint in prison between 1890 and 1897, a certain Marquis Giorgio Barbaro was appointed Commissioner of Prison. This man was considered a psychopath who made the life of prisoners vulnerable. He had tortured, murdered, persecuted and tormented prisoners ceaselessly. He also perjured his way into sending at least two prisoners to the gallows for crimes they had not committed. Dimech saw all this and lived through it with growing agony. The experience, together with the reading he was doing, moulded him into a daring, powerful and intrepid personality.

Dimech adhered to a philosophy that he called 'of action', a position very close, though directly unrelated, to the contemporaneous pragmatism of the United States. He came at this position through his acquaintance with the philosophy of Jeremy Bentham, John Stuart Mill, and other British Empiricists and philosophers of utilitarianism. He claimed that actions can be considered right or wrong, and value judgments can be rightly gauged, according to whether they perform well when applied to practice. Actions, he maintained, proceed from the power that knowledge possesses from itself. Furthermore, actions are aimed at acquiring happiness, first, for the individual, and, simultaneously, for the whole community of individuals.

Once out of prison in 1897, Dimech embarked on an outstanding public career that brought him fame, though not immediate success. From the start of 1898 he issued a weekly in Maltese that was to serve him as his mouthpiece for many years to come. He called it Il-Bandiera tal-Maltin. Through it he explored, albeit with the language and prose of the times, the Maltese social structure. Furthermore, Dimech proposed the way forward. He advocated the education of the masses, and audaciously specified how Malta could one day be an economically self-sufficient independent republic.