By continually observing each new answer found and reviewing it and all previous ones, the truths found will then be demonstrated to be infallible. Through this enumeration process, each part is double-checked and no errors are made; and thus the uncorrupted truth is obtained. After proving that these methods work, Descartes will use them to answer his initial question. By proving himself to be a real thing capable of thinking, he would then reason that a God exists. Understanding that it is a thinking thing, and this thinking thing in itself is perceived as the soul; it is defective. He is defective because he doubted his sense perception. He initially claimed that because his senses are deceptive, they are not true; but through the understanding of "to think it is necessary to exist", I thought I could assume as a general rule that the things we conceive very clearly and very distinctly are all true, but that there is only some difficulty in adequately discerning" (Descartes