cogito ergo sum

"Cogito ergo sum" is a Latin phrase that translates to "I think, therefore I am" in English. It is a philosophical proposition by the renowned philosopher René Descartes. It represents one of the fundamental principles of his philosophy, which reflects the idea that the act of doubting or thinking about one's existence implies that one must exist in order to have those thoughts. In other words, the mere act of thinking confirms one's existence. This phrase serves as a foundational element in Descartes' quest for knowledge and his attempt to establish a firm foundation of certainty.