Philosophy In Meditations on First Philosophy, Descartes attempts to prove the theory of Cogito, commonly known in popular culture as "I think, therefore I am." (AT 27) The Cogito is significant in Descartes' foundationalist project. Descartes foundationalist project consists of finding basic indubitable beliefs to base his future knowledge. This is because he believes that all knowledge processed through the senses can possibly be deceptive and misleading. The Cogito is very significant in respect to Descartes' …showed first 75 words of 649 total…

…showed last 75 words of 649 total…hand in hand. Once Descartes has proven the theory of "I think, therefore I am," he can now build on his foundationalist project. (AT 27) He is now able to build resulting knowledge and compare it to the indubitable thoughts he has come to conclude. The process of thinking can still be altered by the senses but we know one thing for sure, that no matter what, deceived or not, if something thinks, it then exists.