Pragmatism is a philosophical tradition that views language and thought as tools for prediction, problem solving, and action, rather than describing, representing, or mirroring reality. Pragmatists contend that most philosophical topics—such as the nature of knowledge, language, concepts, meaning, belief, and science—are best viewed in terms of their practical uses and successes.

Pragmatism began in the United States in the 1870s. Its origins are often attributed to philosophers Charles Sanders Peirce, William James and John Dewey. In 1878, Peirce described it in his pragmatic maxim: "Consider the practical effects of the objects of your conception. Then, your conception of those effects is the whole of your conception of the object."

Pragmatism as a philosophical movement began in the United States around 1870. Charles Sanders Peirce (and his pragmatic maxim) is given credit for its development, along with later 20th-century contributors, William James and John Dewey. Its direction was determined by The Metaphysical Club members Peirce, Dewey, James, Chauncey Wright and George Herbert Mead.

The word pragmatic has existed in English since the 1500s, borrowed from French and derived from Greek via Latin. The Greek word pragma, meaning business, deed or act, is a noun derived from the verb prassein, to do. The first use in print of the name pragmatism was in 1898 by James, who credited Peirce with coining the term during the early 1870s. James regarded Peirce's "Illustrations of the Logic of Science" series—including "The Fixation of Belief" (1877), and especially "How to Make Our Ideas Clear" (1878)—as the foundation of pragmatism. Peirce in turn wrote in 1906 that Nicholas St. John Green had been instrumental by emphasizing the importance of applying Alexander Bain's definition of belief, which was "that upon which a man is prepared to act". Peirce wrote that "from this definition, pragmatism is scarce more than a corollary; so that I am disposed to think of him as the grandfather of pragmatism". John Shook has said, "Chauncey Wright also deserves considerable credit, for as both Peirce and James recall, it was Wright who demanded a phenomenalist and fallibilist empiricism as an alternative to rationalistic speculation."

Peirce developed the idea that inquiry depends on real doubt, not mere verbal or hyperbolic doubt, and said that, in order to understand a conception in a fruitful way, "Consider the practical effects of the objects of your conception. Then, your conception of those effects is the whole of your conception of the object", which he later called the pragmatic maxim. It equates any conception of an object to the general extent of the conceivable implications for informed practice of that object's effects. This is the heart of his pragmatism as a method of experimentational mental reflection arriving at conceptions in terms of conceivable confirmatory and disconfirmatory circumstances—a method hospitable to the generation of explanatory hypotheses, and conducive to the employment and improvement of verification. Typical of Peirce is his concern with inference to explanatory hypotheses as outside the usual foundational alternative between deductivist rationalism and inductivist empiricism, although he was a mathematical logician and a founder of statistics.^{[citation needed]}

Peirce lectured and further wrote on pragmatism to make clear his own interpretation. While framing a conception's meaning in terms of conceivable tests, Peirce emphasized that, since a conception is general, its meaning, its intellectual purport, equates to its acceptance's implications for general practice, rather than to any definite set of real effects (or test results); a conception's clarified meaning points toward its conceivable verifications, but the outcomes are not meanings, but individual upshots. Peirce in 1905 coined the new name pragmaticism "for the precise purpose of expressing the original definition", saying that "all went happily" with James's and F. C. S. Schiller's variant uses of the old name "pragmatism" and that he nonetheless coined the new name because of the old name's growing use in "literary journals, where it gets abused". Yet in a 1906 manuscript, he cited as causes his differences with James and Schiller and, in a 1908 publication, his differences with James as well as literary author Giovanni Papini. Peirce regarded his own views that truth is immutable and infinity is real, as being opposed by the other pragmatists, but he remained allied with them about the falsity of necessitarianism and about the reality of generals and habits understood in terms of potential concrete effects even if unactualized.

Pragmatism enjoyed renewed attention after Willard Van Orman Quine and Wilfrid Sellars used a revised pragmatism to criticize logical positivism in the 1960s. Inspired by the work of Quine and Sellars, a brand of pragmatism known sometimes as neopragmatism gained influence through Richard Rorty, the most influential of the late 20th century pragmatists along with Hilary Putnam and Robert Brandom. Contemporary pragmatism may be broadly divided into a strict analytic tradition and a "neo-classical" pragmatism (such as Susan Haack) that adheres to the work of Peirce, James, and Dewey.^{[citation needed]}

A few of the various but often interrelated positions characteristic of philosophers working from a pragmatist approach include: