René Descartes ( day-KART, also DAY-kart; French: [ʁəne dekaʁt] ; 31 March 1596 – 11 February 1650) was a French polymath, active across philosophy, including metaphysics, epistemology, ethics, and the philosophy of science; theology; mathematics, in which he connected the previously separate fields of geometry and algebra into analytic geometry; science, including physics, optics, mechanics, cosmology, and meteorology; physiology; and medicine. He has been credited as the father of modern philosophy, particularly due to his transformation of methodology by introducing a systematic, method-based approach to pursuing knowledge.
Refusing to accept the authority of previous philosophers, Descartes frequently set his views apart from the philosophers who preceded him.
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