Pragmatism—A rationalist doctrine founded by American philosopher C.S. Peirce (1839-1914) that attempts to halt all metaphysical speculation about the truth by arguing that practical human activity is the only real test of truth. See Rationalism.

Pragmatism-A rationalist doctrine founded by American philosopher C.S. Peirce (1839-1914) that attempts to halt all metaphysical speculation about the truth by arguing that practical human activity is the only real test of truth. See Rationalism.