The Existence of God: According to Descartes Essays

Humans are finite substances so they cannot come up with the ideas of infinite substances unless it were given to them by an infinite substance. Descartes continues that while we advance gradually each day these attributes could never exist within us because we are only potentially perfect whereas God is actually perfect. Furthermore, Descartes argues that only God could be the author of his being because if it were he or his parent’s other finite substances that authored his being then he would not have wants or doubts because he would have bestowed upon himself every perfection imaginable to a finite being. Therefore, God exists because Descartes could not have thought of God because he is a finite substance thus the idea of God must have come from an infinite substance.

I have an idea of a perfect being; it must contain in reality all the

Secondly, to come up with the second proof of Gods existence, Descartes thought that the power and action that is needed to preserve something is capable of creating something new. He argued that there must be as much power in the cause just as it is in the effect. According to the philosophical writings of Descartes, upon knowing that he did not have power to preserve his own existence because he was just a thinking thing; Descartes concluded that the power must have come from outside him (Descartes, Cottingham and Murdoch 26) And since he is a thinking thing, he claims that the one who created him must also be a thinking thing, possessing all the ideas and attributes of god. In addition, he observed that his parents could not be responsible for creating and preserving his life. Descartes therefore concludes that the one who created him and gave him ideas of a perfect God must be God, therefore God exists.

In Rene Descartes Meditations on First Philosophy, Descartes is seeking to find a system of stable, lasting and certain knowledge, which he can ultimately regard as the Truth. In his methodical quest to carry out his task, Descartes eventually arrives at the proverbial fork in the road: how to bridge the knowledge of self with that of the rest of the world. Descartes’ answer to this is to prove the existence of God. The purpose of this essay will be to state and explain Descartes' Third Meditation: Proof of God's Existence by identifying relevant concepts and terminology and their relationship to each other and examining each premise as well as the conclusion of the proof and finally

He also knows for certain that various ideas appear before his mind. To work with Descartes has himself as a non-extended thinking thing and his ideas.

After giving his first proof for the existence of God Descartes concludes by mentioning that this proof is not always self-evident. When he is absorbed in the world of sensory illusions it is not quite obvious to him that God’s existence can be derived from the idea of God. So to further cement God’s existence Descartes begins his second proof by posing the question of whether he could exist (a thinking thing that possesses the idea of an infinite and perfect god) if God itself did not exist.

Descartes’s attempt to prove the existence of God begins with the argument that he has the clear and distinct idea of God as the “most perfect being and that there must be at least as much reality in the efficient and total cause in the effect of that cause” (40). Therefore, this idea of God can’t be from himself, but its cause must be God. So God exists. In what follows I’ll explain these terms and why the premises seemed true to him.

Adventitious ideas are created by outside objects but Descartes, “points out that, even if his adventitious ideas are produced by external objects, he has no reason for believing that his ideas resemble the objects which produced them.” Descartes believes

To further validate his proof, he attempts to show God’s existence as an a posteriori claim. Descartes states that as humans we have the idea of God in our minds. We conceive God as a perfect being, that of perfect existence. As shown in the quote from page 37, this idea of God is beyond our reasoning to create, and must have come from God itself. Our idea of God certifies his existence. Descartes deviates from the method again, and his reasoning fails to provide an absolute proof.

You can find Descartes’ proof of the existence of God in the Third Meditation. Although to understand this argument you have to look at his previous meditation where he begins to build his argument with the notion that in order for him to think, he must exist. From this observation, Descartes’ sees that the idea of his existence is very clear and distinct in his mind. Based upon this clarity and the fact that he has just determined his own

Descartes makes an attempt to prove God’s existence throughout his third meditation. In his first premise he states that he has an idea of an infinitely perfect being. He uses the Principle of Sufficient reason to advance his argument; it states that everything must have a reason or cause. This put forth his second premise; that the idea of god must have a

If interested Descartes proof of gods existence is clearly stated in the third meditation. He begins to build most of the argument in

Given the above arguments one can begin to understand the nature of the God Descartes is endeavoring to prove. For Descartes, God is infinite and perfect existence. God is “eternal, immutable, independent, supremely intelligent, supremely powerful, and [the creator of] everything else". (Descartes 20) Not only does God possess this nature but it is necessary that He does so. If God is not infinite or perfect God could not exist as these attributes are essential to God's existence. Furthermore, if God is not the ultimate creator the innate idea of God we experience would cease to be innate but adventitious (externally caused) or imaginative (caused by the mind) which is again impossible given its content. Given these qualities one can draw a connection to the

In the Third Meditation, Descartes forms a proof for the existence of God. He begins by laying down a foundation for what he claims to know and then offers an explanation for why he previously accepted various ideas but is no longer certain of them. Before he arrives at the concept of God, Descartes categorizes ideas and the possible sources that they originate from. He then distinguishes between the varying degrees of reality that an idea can possess, as well as the cause of an idea. Descartes proceeds to investigate the idea of an infinite being, or God, and how he came to acquire such an idea with more objective reality than he himself has. By ruling out the possibility of this idea being invented or adventitious, Descartes concludes

In A Discourse on the Method, Descartes attempted to prove the existence of God in a priori manner. He did not trust his own senses when trying to prove the existence of God and therefore he relied on the ontological argument. By making the same assumption made by Anselm, which was that an ontological argument assumes that existence is a predicate of God, Descartes is able to conclude that ‘God exists’ is true by definition because the subject ‘God’, who already contains all perfections, already contains the predicate – exists, which is a perfection. Although this may be perceived as a strong claim to believers, many such as Gaunilo would have disagreed. Descartes postulates his argument in the fourth part of his Discourse in order to try and prove the existence of God. One must discuss why one feels Descartes attempted to do so and exactly how convincing his claim is. However, before one can understand his claim, it is important to grasp an idea of the background that Descartes was writing from when he wrote the Discourse and the meaning of proof.