Beginning of Essay
The existence of God has been a question since the idea of God was conceived. Descartes tries to prove Gods existence, to disprove his Evil demon theory, and to show that there is without a doubt something external to ones own existence. He is looking for a defini ....

Middle of Essay
.... all of our senses would be doubtable and thus taken as false. This theory proves that nothing external is certain and must be proven false to continue his quest for truth and certainty. Descartes second meditation gives a definite certainty for which to use as his foundation to build his beliefs. Then his third meditation proves the existence of God and the external world, while disproving the evil genius theory. That definite certainty that cannot be doubted, is the fact that I exist. Whenever I utter or think “I am” I know this to be absolutely true, without doubt. From this definite foundation Descartes tries to prove that there is som ....