Therefore what we know first, we know with the greatest certitude, because he does not want to believe anything else that he has learned in the past, and wants to believe what he discovers for himself. He also said that anything that we can doubt, we should not take to be true because our senses can deceive us. Descartes goes against all other ways of thinking, and believes that what we know through reason and what we learn first is what we know with the most certainty.

The order in which we know things, according to Descartes, all stems out from his base philosophy, which is “I think therefore I am.” “I think therefore I am” is the basis of Descartes’s philosophy. Because “I think therefore I am” is the first thing that Descartes bases his philosophy on, and it is what he knows the greatest. Since it is the first thing that he learned, it is also the thing that he know

Descartes comes to the final conclusion that it is only through your senses and reason that it is possible to come to learn the truth. He does not trust the senses completely because the senses can deceive you very easily, whereas your reason would not deceive you. Descartes emphasizes that we learn everything beginning with “I think therefore I am” because that is what we know best and therefore understand the most clearly and distinctly. Descartes knows that with the most certitude because that is what comes to him most clearly and distinctly, and it is the first step to learning the truth.

Descartes is very skeptical about believing that the senses provide us with the truth. He uses the example of the sun to prove his point. He says that as we look at the sun, it appears to be very tiny to us because it is so far away. In actuality the sun is enormous, and we could not even imagine how big it would be if we were close to it. We are deceived by the size of the sun by our senses because we are so far away. Because Descartes believes that the senses can always deceive us, he does not want to believe them because he feels they might deceive him. He does not perceive his sense

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