What are some of Descartes' quotes that have had a significant impact on modern philosophy?

One of Descartes' most famous quotes is "Cogito, ergo sum" which means "I think, therefore I am." This statement emphasizes the importance of self-awareness and consciousness in defining one's existence. Another significant quote is "I think, therefore I am" which highlights the connection between thought and existence. These quotes have had a profound impact on modern philosophy by influencing ideas about the nature of reality, knowledge, and the self.