René Descartes (1596-1650), French philosopher and mathematician known as the father of modern philosophy. Famous for the philosophical statement 'I think, therefore I am.'
French surname meaning 'of the charts' or 'from the maps,' from 'des' (of/from) + 'cartes' (charts/maps). The family name likely indicated ancestors who were cartographers or lived near a place associated with maps.
Descartes revolutionized philosophy by applying mathematical reasoning to questions of existence and knowledge, creating Cartesian dualism - the idea that mind and body are separate substances. His method of systematic doubt laid the foundation for the scientific method we use today.
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