Which of the following claims did Descartes use to establish the certainty of his own existence?
A) To be is to be perceived.
B) I think, therefore I am.
C) Nothing exists except bodies in motion.
D) Every created thing has both mental and physical properties.

Question

Quizplus · Accepted Answer

Descartes used the statement "I think, therefore I am" (also known as "Cogito ergo sum") to establish the certainty of his own existence, as he argued that even if an evil demon was deceiving him about everything else, he could not be deceived about the fact that he exists because he is thinking. Option A is a phrase attributed to George Berkeley, not Descartes. Option C is a claim associated with the mechanistic worldview of thinkers like Galileo and Newton, but it is not one that Descartes himself made. Option D is a view associated with property dualism, which Descartes did espouse, but it is not directly related to his argument for the certainty of his own existence.

Which of the Following Claims Did Descartes Use to Establish