Is it "I think, therefore I am"? We have just learned foreign literature: Descartes' philosophy (I think I was there. I think, therefore I am. Through Descartes' detailed description of his philosophical course, we can know that the meaning of this famous saying is not: I think, therefore I am. But: "when I doubt the existence of everything, I don't have to doubt my own thoughts, because the only thing I can be sure of at this time is the existence of my own thoughts." The authoritative explanation is: "I can't deny my existence, because when I deny and doubt, I already exist!" " "So, it is contradictory to deny your existence. Denial and doubt are a kind of thinking activity, so he said, I think, therefore I am. Not the usual "I think, therefore I am!" "The central idea of this sentence is idealism. Hmm. How interesting