Charles Sanders Peirce (1839–1914) is a fascinating figure philosophically, historically, and biographically. He was the inaugurator of Pragmatism, America's great contribution to philosophy; he is the founder of an intellectual enterprise committed to disrupting all foundations. His most inventive work addressed language, communication, and symbology; the pure volume of his output on pretty much everything is quite belittling to one's own sense of capacity– mathematics, mathematical logic, physics, geodesy, spectroscopy, astronomy, psychology, anthropology, history, and economics. He developed a theory of semiotics quite distinct from his contemporary Saussure, and always, like his great friend William James, sought to radically reconsider the relation of thought to practice, of theoria to praxis.
His biography is as cinematic as his thought is imposing. For thirty-two years, from 1859 until the last day of 1891, he was employed by the U. S. Coast and Geodetic Survey, mainly surveying and carrying out geodetic investigations. This largely mechanical work done to finance his philosophical work and his extravagant spending. This was increasingly a problem after the termination of his teaching position at Johns Hopkins; this was due, it seems, to the public disapproval of Peirce's second wife (a Gypsy), and even more so by the scandal that Peirce had more or less openly cohabited with her before marriage and before his divorce from his first wife. This was all quite beyond the pale of 19th century American academia. Thereafter, Peirce often lived on the edge of penury, eking out a living doing intellectual odd-jobs and because of the overt or covert charity of relatives or friends, for example that of his old friend William James.