Richard Watson (philosopher) Richard Watson (philosopher) Richard A. Watson (born 1931) is an American philosopher, speleologist and author. Watson taught philosophy at Washington University in St. Louis for forty years. He is considered one of the foremost living authorities on Descartes. He is an Emeritus Professor of Philosophy for Washington University in St. Louis. He has a degree in geology specializing in "paleoclimatology of 10,000 years ago." This involved the development of agrarian societies in the Fertile Crescent. From July 1965 to July 1967, he was president of the Cave Research Foundation. His book, "Cogito, Ergo Sum: a life of René Descartes" was
Cogito, ergo sum familiar form of the phrase in his 1641 "Meditations on First Philosophy". The earliest written record of the phrase in Latin is in his 1644 "Principles of Philosophy", where, in a margin note (see below), he provides a clear explanation of his intent: "[W]e cannot doubt of our existence while we doubt". Fuller forms of the phrase are attributable to other authors. The phrase first appeared (in French) in Descartes's 1637 "Discourse on the Method" in the first paragraph of its fourth part: In 1641, Descartes published (in Latin) "Meditations on first philosophy" in which he referred to the proposition,