Descartes ' Cogito Ergo Sum And Ontological Arguments

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

The cogito, “I think” is Descartes’ first certainty and his first step into knowledge. Descartes argues that there is one thing that he is most certain of and even the evil demon can manipulate and make him doubt. He cannot doubt that he thinks because even doubting of a form of thinking and that means that he will be thinking. Even if the demon made him doubt that he is thinking, he would be confident that he is thinking that the demon is making him doubt his thinking. He cannot also doubt that he exists and if he were to doubt of his existence, he would prove that he exists because of his thoughts, and thus his thinking means he exists and hence if he exists then he must be thinking of his existence. Therefore, Descartes extends his certainty

     This is where the wax argument comes into play. All the properties of the piece of wax that we perceive with the senses change as the wax melts. This is true as well of its primary properties, such as shape, extension and size. Yet the wax remains the same piece of wax as it melts. We know the wax through our mind and judgement, not through our senses or imagination. Therefore, every act of clear and distinct knowledge of corporeal matter also provides even more certain evidence for the existence of Descartes as a thinking thing. Therefore his mind is much clearer and more distinctly know to him than his body. At this

The argument, as Descartes presented, does not give a valid reason for the existence of the body or anything else in the physical world, so we cannot accept that bodies exist. Neither does the cogito account for the existence of other minds as that would entail knowledge of the physical world where other things exist. The cogito concept does however; give a valid argument for the existence of the mind or a thinking thing that exists independently of the body. In his novel Think, Blackburn explains the cogito concept as a means of justifying the core of one’s existence as thinking, we accept that thought exists not a ‘self’ (Blackburn, 2001:20). I agree with Blackburn because his [Descartes’] concept serves well to prove that we exist as thinking things and even if we were to discard any a priori or a posteriori knowledge, we can still endorse the cogito.

As a thinking entity, Descartes is a consciousness mind aware of the potential to engage in various modes of existence. To the numerous operations of “thought” he includes doubting, understanding, affirming, denying, willing, refusing, imagining, and sensing. As varied and manifold as these operations appear, they are but expressions of two principal types of conscious activity, to which Descartes eventually traces the nature of error. Thinking and reasoning, together with all belief in general, depend upon the operation of the twin faculties “knowing” and “choosing,” or the free will. Garrett Thompson writes:

As with almost all of Descartes inquiries the roots of his second argument for the existence of God begin with his desire to build a foundation of knowledge that he can clearly and distinctly perceive. At the beginning of the third meditation Descartes once again recollects the things that he knows with certainty. The problem arises when he attempts to clearly and distinctly understand truths of arithmetic and geometry. Descartes has enough evidence to believe these things, but one major doubt is still present; the possibility of God being a deceiver. Descartes worry is that all the knowledge that he possesses through intuition could potentially be false if God merely chooses to deceive him. So in order to have a clear and distinct perception of arithmetic truths (and other such intuitive truths) Descartes delves into the question of God’s existence (and whether this God could be a deceiver or not).

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.

Descartes acknowledges the fact that everything he knows so far clearly and distinctly are by God to this he understands that God is not a deceiver anymore from the previous meditations. Since he knows that God is not a deceiver he recognizes clearly and distinctly that one thing without another makes him certain two subjects can be different from one another and be separate as well. As such, he also acknowledges that he exists and that he has the ability to judge although with the knowledge of existing and the ability to judge he does not own anything else but thinks of himself as a thinking thing. The Cogito is created as such and to this his belief of a thinking thing and body are now two completely different categories. By believing he

Something very essential to know about Descartes is his idea of Cogito Ergo Sum; I think, therefore I am. He believes that he exists because he is thinking, making him a thinking thing. Descartes first premise states, "I have a clear and distinct idea of myself, in so far as I am simply a thinking, non-extended thing" (Descartes, 54). The first thing that we need to understand from this premise is what Descartes means by extended; to occupy space. So, since he believes that he is not an extended thing, it follows that he does not take up space. Given this, he looked inside himself and saw no parts within his mind, no space or boundaries that his mind contains. In addition, the mind provides a place for free will and faith, which are not parts but different ways of thinking. He rationalizes this by making the mind of a qualitative substance. By saying that only things that can be measured must be of a material substance and those things that cannot be measured are of a thought like substance. The relation between body and mind now seem to be more divided since he believes that his mind is not extended. In short, this premise states that the mind has no parts, making it indivisible.

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.

one must have at least a general idea of his motives in undertaking the argument.

In the meditations, Descartes evaluates whether or not everything we know is a reality or a dream. Descartes claims that we can only be sure that our beliefs are true when we clearly and distinctively perceive them to be true. As the reader analyzes the third meditation, Descartes has confirmed that some of his beliefs are in fact true. The first is that Descartes himself exists. This is expressed in what has now become a popular quote known as the “Cogito” which says, “I think therefore I am. His second conclusion is that God exist and that he is not a deceiver. Descartes then presents his arguments to prove the existence of God. He argues that by nature humans are imperfect beings. Furthermore, humankind could not possibly be able to comprehend perfection or infinite things on their own. He writes, “By the name of God I understand a substance that is infinite, independent, all-knowing, all powerful, and which myself and everything else…have been created.”(16) Descartes uses this description of God to display the distinction between God and man.

Rene Descartes Meditations is known to be one of his most famous works, it has also shown to be very important in Philosophical Epistemology. Within the meditation’s he provides many arguments that remove pre-existing notions, and bring it to the root of its foundation which Descartes, then will come up with his indubitable foundation of knowledge to defeat any doubt and to prove God is real. Descartes was a “foundationalist”, by introducing a new way of knowledge and with clearing up how people thought about things prior. Descartes took knowledge to its very foundations, and from there he can build up from it. In this essay, I will be discussing Descartes, and analyzing his first two meditations and arguing that he does indeed succeed in his argument.

It is the purpose of this essay to examine both Descartes’ Cogito argument and his skepticism towards small and universal elements, as well as the implications these arguments have on each other. First, I will summarize and explain the skepticism Descartes’ brings to bear on small and universal elements in his first meditation. Second, I will summarize and explain the Cogito argument, Descartes’ famous “I think, therefore I am” (it should be noted that this famous implication is not actually something ever said or written by Descartes, but instead, an implication taken from his argument for his own existence). Third, I will critique the line of reasoning underlying these arguments. Descartes attacks

Renee Descartes used “cogito ergo sum” to prove his own existence. It literally means, "I think; therefore, I am." He claimed that he can’t be certain that he’s a human being. He first thought that he had a soul and a body, meaning that he could sense and think. However, through his “universal doubt”, he found that he cannot exist if he does not think, and he can only exist when he was thinking.