“I am thinking, therefore I exist. (...) I was a substance whose whole essence or nature is solely to think, and which does not require any place, or depend on any material thing, in order to exist. Accordingly this 'I' - that is, the soul by which I am what I am - is entirely distinct from the body, and indeed is easier to know than the body, and would not fail to be whatever it is, even if the body did not exist.”
![“[About Pierre de Fermat] It cannot be denied that he…” quote by Rene Descartes](https://sms4smile.com/quotes/img-quotes/588/ren-descartes-1376_able_about-pierre-de-fermat-it-cannot-be-deni_89929.jpg)
