Rene Descartes is a well-known mathematician and philosopher. Descartes believed that the information we received through our senses was not perfectly correct. Descartes’ perceptions of the truth on philosophy were God, the mind, and the external world. He used each of these in the work that he accomplished. His strategies showed that, regardless of the disputes from the best skeptics, he still believed there was at least one truth that was beyond all reasonable doubt and that the rest of human knowledge could be determined. Descartes used his methods just like a math equation with the answer eventually leading to one answer. In his work “The Meditations on First Philosophy,” he goes into the six methods that lead to one truth. In Descartes’ first meditation he goes into how our senses can deceive us. He shows in this first step that we can’t always trust our own senses to give us accurate knowledge. His first step was to delete everything he thought he knew, refusing to trust even the basic principles of life until proven to him accurate. Then he comes to question himself - what if there is an evil demon trying to fool him to think he was inaccurate about everything. The reason he has all the doubts is to find the method to discover the one answer. An example of how our senses can trick is doesn’t it seem certain that “I am here, sitting by the fire, wearing a winter dressing gown, holding this piece of paper in my hands, and so on?” (AT VII 18: CSM II 13). Any belief based only on sensation has been shown to be uncertain. His goal is to find something that can’t be doubted in the second part of the method. The second meditation of “The Meditations on First Philosophy,” goes into the well-known quote “Cogito, ergo sum” better known as “I think, therefore I am.” It begins to show the confirmation of our human existence. The one thing Descartes was positive about was that there must be an “I” that exis