Throughout philosophical history, many famous philosophers, including Nietzsche, Socrates, and Aristotle, have questioned the existence of a higher power and his role in the universe. While some fail to produce a compelling argument, others, such as Descartes and Berkeley have not just managed to produce a case that makes sense, but one that has the ability to debunk other opinions. Although the two philosophers differ when it comes down to the details, both believe God to be the foundation to their theories of knowledge. In Berkeley’s Dialogues, he brings up two questions to prove the existence of God: what causes my sensations? And how do objects stay in existence when I do not perceive them? He then demonstrates, in his dialogue, that God is the absolute perceiver among the finite minds, due to the fact that an infinite mind must exist for objects to stay in existence. Descartes, on the other hand, brings up the method of reasoning and innate ideas. He states that through hyperbolic doubt and using the only resources he has, inherent ideas, he can prove that God exists. To Berkeley, God serves the role of the absolute perceiver, while to Descartes, the idea of God exists innately in his mind, and due to his existence and perfection, ones perceptions and senses can be made certain. In comparison, I would argue Berkeley proves to have the more convincing argument due to his ability to connect the real world to ones mind without falling into ad infinitum as Descartes does. Descartes proof of God uses reason and ontology rather than perception. His argument in meditation five is known as the ontological argument, which comes down to the idea that God exists because God exists. Descartes states this when he says, “But if, from the mere fact that I can bring forth from my thought the idea of something, it follows that all that I clearly and distinctly perceive to belong to that thing really does belong to it, then cannot this too be a basis for an argument proving the existence of God?" (Descartes, 88). Here Descartes proves God using the idea of the infinite. To explain this, suppose you have a “picture” of the infinite. You have the idea of the infinite and what a perfect being is, but where did this image of the infinite come? Since humans are imperfect and finite it cannot be the sum of finite ideas that make the infinite because finite plus finite will still equal finite. So the only source you could have received the infinite “picture” is from the infinite being itself. This means that the idea of the infinite must be innate. The picture of the infinite is Gods signature. Descartes then continues his argument using mathematics and geometry as examples. He states, since one thinks of a triangle as a three-sided figure with three angles that are equal to 180 degrees, or that the longest side is opposite its largest angle, properties that describe a triangles essence, one can do the same with God. This is because when one thinks of God, one thinks of the existence of him as well, as it is