In his second Meditation, Descartes argues that even if he doubts everything he has ever known, the very process of doubting proves his existence as a thinking thing.  How does Descartes arrive at his famous conclusion “I think therefore I am”?  Do you think Descartes is correct to believe that he can be certain of his own existence?  Why or why not?

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Descartes arrived at the conclusion that the existence of the doubting self is the only thing that proves his existence by doubting everything that he could not