Pragmatism considers thought as an instrument or tool for prediction, problem solving and action, and rejects the idea that the function of thought is to describe, represent, or mirror reality. Pragmatists contend that most philosophical topics—such as the nature of knowledge, language, concepts, meaning, belief, and science—are all best viewed in terms of their practical uses and successes. The philosophy of pragmatism “emphasizes the practical application of ideas by acting on them to actually test them in human experiences”. Pragmatism focuses on a “changing universe rather than an unchanging one as the Idealists, Realists and Thomists had claimed”.
John Dewey was a leading proponent of the American school of thought known as pragmatism, a view that rejected the dualistic epistemology and metaphysics of modern philosophy in favor of a naturalistic approach that viewed knowledge as arising from an active adaptation of the human organism to its environment.
The central focus of Dewey’s philosophical interests throughout his career was what has been traditionally called “epistemology,” or the “theory of knowledge.” It is indicative, however, of Dewey’s critical stance toward past efforts in this area that he expressly rejected the term “epistemology,” preferring the “theory of inquiry” or “experimental logic” as more representative of his own approach.
The error of modern epistemologists, as Dewey saw it, was that they isolated the reflective stages of this process, and hypostatized the elements of those stages (sensations, ideas, etc.) into pre-existing constituents of a subjective mind in their search for an incorrigible foundation of knowledge. For Dewey, the hypostatization was as groundless as the search for incorrigibility was barren. Rejecting foundationalism, Dewey accepted the fallibilism that was characteristic of the school of pragmatism: the view that any proposition accepted as an item of knowledge has this status only provisionally, contingent upon its adequacy in providing a coherent understanding of the world as the basis for human action.
The basis of Dewey’s is the continuity of intelligent inquiry with the adaptive responses of pre-human organisms to their environments in circumstances that check efficient activity in the fulfillment of organic needs.