Charles Sanders Peirce
Peirce, Charles Sanders (1839–1914), U.S. philosopher, a pioneer of pragmatism. He is also known for his work on the logic of relations, theory of signs, and other contributions in logic and the philosophy of science. He wrote no comprehensive work but published numerous articles in philosophical journals, some of which were collected posthumously in Chance, Love and Logic (1925).
See also: Pragmatism.