Descartes sought to build a foundation for knowledge that was absolutely certain. His work shifted the focus of philosophy from external observation to the internal mind.
: He argued that the mind (immaterial) and body (physical) are two distinct substances that interact, a concept known as Cartesian Dualism. š Mathematical Innovation Cartesius
: His ultimate conclusionā"I think, therefore I am"āestablished the thinking self as the only undeniable truth. Descartes sought to build a foundation for knowledge