The Ontological Argument For The Existence Of God

Descartes’s mission in the meditations was to doubt everything and that what remained from his doubting could be considered the truth. This lead Descartes to argue for the existence of God. For the purpose of this paper, I will first discuss Descartes’s argument for the existence of God. I will then take issue with Descartes’s argument first with his view on formal reality and varying levels of reality, then with his argument that only God can cause the idea of God. I will then conclude with

Descartes claimed "God exists" is true, if we know what it means to talk of God. Similarly, he maintained that once we know what a triangle is we know that it must have three sides. Like a triangle inherently must have three sides, so God inherently must exist. Objections to the ontological argument were first brought up by a monk who was a contemporary of Anselm named Gaunilo.

The ontological argument can be stated in this way: “God is the greatest being imaginable. One of the aspects of perfection or greatness is existence. Thus, God exists.” Or put another way—“The fact that God can be conceived means that he must exist.”

In this paper, I offer a reconstruction of Descartes argument for God’s existence in the Third Meditation. Descartes tries to prove the existence of God with an argument that proceeds from the clear and distinct idea of an infinite being to the existence of himself. He believes that his clear and distinct idea of an infinite being with infinite “objective reality” leads to the occurrence of the “Special Causal Principle”. I will start by discussing and analyzing Descartes clear and distinct idea of an infinite being and how it the classification of ideas and the difference between formal and objective reality Special Causal Principle. Finally, I will examine the reasons Descartes offers for his belief in Gods existence and I will indicate the drawbacks within the proof. It will be concluded that Descartes arguments are inadequate and don’t clearly prove the existence of God.

Rene Descartes’ third meditation from his book Meditations on First Philosophy, examines Descartes’ arguments for the existence of God. The purpose of this essay will be to explore Descartes’ reasoning and proofs of God’s existence. In the third meditation, Descartes states two arguments attempting to prove God’s existence, the Trademark argument and the traditional Cosmological argument. Although his arguments are strong and relatively truthful, they do no prove the existence of God.

Descartes’ method offers definitive conclusions on certain topics, (his existence, the existence of God)but his reasoning is not without error. He uses three arguments to prove existence (His and God’s) that attempt to solidify his conclusions. For his method to function seamlessly, Descartes needs to be consistent in his use of the method, that is, he must continue to doubt and challenge thoughts that originate in his own mind. He is unable to achieve this ideal state of mind, however, and his proofs are shown to be faulty.

“Cogito ergo sum” (“I think, therefore, I am”) (Descartes, Miller, Miller, 1983). René Descartes was a philosopher of the 17th century who made major contributions to the field. Everything from his metaphysical arguments of existence of man to his proofs for the existence of God are still discussed and debated today. In the field of religion, most famous is his Ontological proof for the existence of God. In other words, proof that one can know God a priori, with no experience whatsoever. Following his publication, a philosopher named Caterus raised key objections to his proof, which he later responded to in an intriguing way. Descartes’s reply to Caterus’s critique of Descartes’s Ontological argument does not properly refute the objections

The existence of God has always been an arguable topic. Descartes’ however, believed that he had proof of God’s existence through an intense analysis of the mind. Throughout this paper I will discuss what he has provided as proof and some of the complications that arise throughout his argument.

The 17th century philosopher Rene Descartes believed that God exists. His proof of an all perfect being’s existence was explained by having an idea of God that had to have been caused by God. But simply having an idea of God is not enough for there to necessarily exist such a being. This paper will critically examine Descartes’s causal argument though its premises and conclusion.

The concept of God is central to the development of Cartesian and Spinozan philosophy. Although both philosophers employ an ontological argument for the existence and necessity of God the specific nature of God differs greatly with each account. While Descartes suggests a Judeo-Christian concept of God, Spinoza argues a more monistic deity similar to that of the Hindu tradition. The most significant difference however, lies within the basis and structure of each argument itself. Considered from an analytical standpoint through the lens of Gotlobb Frege, Descartes' proof of God possesses both sense and reference and is therefore capable of expressing the

In the Fifth Mediation, Descartes purports his ontological argument for the existence of God. It is simpler than his first and based on God's essence. For anything else that exists, the essence of that thing only implies it's existence. For God, however, essence

I begin with the constructs of Anselm. The ontological, or a priori, argument was first expressed in 1070 by Anselm. He argued that because we have a notion of an all-perfect being "that than which nothing greater can be conceived" – It must be God. Anselm regarded God as a being one who enjoys all conceivable perfection. Yet if God "existed" only as an idea in our awareness, then God would be less perfect than if He in fact existed. Therefore God had to be greater than what our finite minds have ability to conceive so as not to contradict the definition of God.

Descartes declares that he will only accept ideas that he can absolutely affirm, but accepts the existence of God without adequately proving it. This inadequacy undermines his declared project of defining the world in terms of established ideas. He does not sufficiently prove the idea of God, yet bases so much on it. When he later discusses physical bodies, intellect, and mathematical concepts, the reader cannot forget that everything he writes is based on the shaky foundation of the Christian God, and finds his

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.

Descartes’ Meditations on First Philosophy (1641) contains six Meditations. In the first two of these Descartes addresses doubt and certainty. By the end of the second Meditation Descartes establishes the possibility of certainty by concluding that he is a “thinking thing” and that this is beyond doubt. Having established the possibility of certainty, Descartes attempts to prove the existence of God. The argument he presents in the Third Meditation for the existence of God has been nicknamed the ‘Trademark’ argument. This argument deals with types of ideas, of which there are three, a principle called the Causal Adequacy principle, and a sliding scale of reality. The argument concludes that the idea of a God that is a perfect being is an innate idea that is real and was caused by God and therefore God is real. This argument will be explained with the greater detail in the next paragraph. In the Fifth Meditation Descartes again addresses the existence of God with an argument for His existence. This argument is a variation of St. Anselm’s ontological argument. This argument is also framed around his theory of ideas, as well as his principle of ‘clear and distinct perception’ and is explained and discussed in paragraph three. The paragraphs following these will discuss how convincing these two arguments from Descartes are and will deal with various objections. Many of these objections are strong enough that it will be clear why Descartes’ case has failed to convince everyone.