In Meditation One, Descartes describes his method of doubt. He subjects all of his beliefs to the strongest of doubts. He invokes the notion of an all-powerful, evil demon who could be deceiving him in the realm of sensory perception, in his very understanding of matter and even in the simplest cases of mathematics such as in the equation 2+3=5. The doubts may be obscure, but this is the strength of the method; the weakness of criteria for what makes a doubt reasonable means that almost anything can count as a doubt. Therefore whatever withstands doubt must be something that he considers absolutely certain.

In Meditation Two, Descartes finds the one indubitable principle that he has been seeking. He exists, at least when he thinks he exists. This view holds that Descartes asserts that he is thinking, he believes that 'whatever thinks must exist' and therefore that he logically concludes that he exists. Furtherm

Each of the sensory qualities have changed or been transformed, yet the same piece of wax remains. After you remove everything that does not belong to the wax, it is precisely something extended, flexible, and mutable. If you ignore the senses, the wax is still wax; but if you focus on the accidental qualities, the two pieces of wax have nothing in common. This means that you cannot look to the senses for truth about physical objects. The wax is capable of innumerable changes even though the imagination is not capable of relating them, therefore this insight is not achieved by the faculty of imagination.

Descartes establishes that the human mind is better known than the human body. He states that no belief based on sense-perception is free from doubt. Thus he cant be certain about the existence of his hands, head or body in general since they are all perceived through his senses. Descartes tries to show that we know bodies through reason and not through senses.

Descartes concedes that he does not grasp what this wax is through the imagination, but rather perceives it through the mind alone. His imagination gives him finite pictures whereas the wax has infinite shapes. When he distinguishes the wax from its external forms there might be an error in his judgment, but it is definite that he cannot perceive it without a human mind. If he judges that

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Approximate Word count = 919
Approximate Pages = 4 (250 words per page double spaced)