What did Descartes believe was the fundamental thing that is beyond doubt?
A) what kind of thing he is
B) that he has a body
C) that God exists
D) that he exists

Question

Quizplus · Accepted Answer

Descartes believed that the fundamental thing that is beyond doubt is his own existence. This is encapsulated in his famous statement, "Cogito, ergo sum," which translates to "I think, therefore I am." He argued that even if he doubted everything, the very act of doubting confirmed his existence as a thinking entity.

What Did Descartes Believe Was the Fundamental Thing That Is