René Descartes Meditations On First Philosophy

Descartes is now clear on his perception of God so he looks at material things. He points out that a body must exist in reality, because for him to dream about his body, it must exist before he would know what to dream about. So although he can perceive qualities of material things, he is still confused about some things because of is imperfect perception. He concludes that the senses are meant to help him get around in the world, not to lead him to the truth. ( SparkNotes Editors, 2012 )

In Descartes’ First Meditation, Descartes’ overall intention is to present the idea that our perceptions and sensations are flawed and should not be trusted entirely. His purpose is to create the greatest possible doubt of our senses. To convey this thought, Descartes has three main arguments in the First Meditation: The dream argument, the deceiving God argument, and the evil demon “or evil genius”. Descartes’ dream argument argues that there is no definite transition from a dream to reality, and since dreams are so close to reality, one can never really determine whether they are dreaming

     On the journey to find truth to base all thought upon, Descartes explains his first step in doing so. “Never accept anything for true which I did not clearly know to be such; that is to say, carefully to avoid precipitancy and prejudice, and to comprise nothing more in my judgment than what was presented to my mind so clearly and distinctly as to exclude all ground of doubt.”(Kolak, Pg.228). Assuming that everything you see is fictitious, Descartes believed he had no senses at all; “body, shape, extension, motion, and place are unreal.”(Weissman, Pg.23). Our senses have failed us all at one point or another in our lives, so why use the senses as a base for thought? The most famous quote and philosophy by Descartes in history ever, “Je pense, donc je suis, cogito ergo sum” (Durant, Pg.639). “I think, therefore I am” was the first step towards a basis to understand truth, and leaning away from truth through the senses.

In the fifth and last skeptical hypothesis, Descartes raises the possibility of there being an evil demon that deceives him into believing falsehoods. Descartes has established arguments that either support or demolish the thoughts for all of these skeptical hypotheses. As stated previously, the dream argument points out that people may actually be dreaming when they think they are living in reality. Descartes used his methods of detecting falsities to evaluate this argument.

In Meditations on First Philosophy, René Descartes philosophies made a substantial advancement in enabling us to understand the world around us by querying many of the Aristotelian doctrines that are still being discussed in philosophy today. He attempts to answer the question; can you fully trust your senses? Descartes uses methodological doubt, which is a process of being skeptical about truths of someone’s belief to revoke from his senses. In Meditation One: Concerning Those Things That Can Be Called into Doubt, he argues that people cannot rely on their senses for full truths. Descartes says we must question everything and doubt everything because everything in this world is subjective as opposed to objective. He begins to argue by saying how when he was a child he believed certain things to be true but then later found out the real truth. Within his first meditation he uses an example of dreaming to prove how our senses deceive us. In Meditation Two: Concerning the Nature of the Human Mind: That the Mind is More Known Than the Body, Descartes starts off by questioning God and Heaven and provides another example of the ball of wax to support his ideas of how our senses cannot be fully trusted. Descartes does a fantastic job proving that the mind and body are disconnected and therefore we cannot trust our senses.

Descartes then goes on to assume that there is a God, who is all powerful, and created this world; yet he asks, "How do I know that He has not brought it to pass that there is no earth, no heaven, no extended body, no magnitude, no place, and that nevertheless they seem to me to exist just exactly as I know see them?" (Descartes, p.76, par.5) Without a guarantee of reality, maybe all of his previous beliefs are false. Descartes doubts the supreme goodness of a God that would let him be deceived even occasionally. Moreover, if a perfect God does not exist then it becomes probable that Descartes himself is increasingly imperfect and therefore is constantly being misled. "If, however, it is contrary to His goodness to have made me such that I constantly deceive myself, it would also appear contrary to His goodness to permit me to be sometimes deceived, and nevertheless I cannot doubt that he does permit this." (Descartes, p.76, par.5) Descartes assumes the scenario that God is really an "evil demon".

Descartes claims that sensation is deceptive, and therefore cannot be trusted. He says that our senses tell us that distant objects are small, when they are actually large. Descartes goes on to state that “it is unwise to trust completely those who have deceived us even once” (Descartes, First Meditation, 2). Descartes then proceeds to prove his claims about human knowledge through deductive reasoning. First, he claims that sensation is deceitful, so we cannot trust anything that our bodies or senses perceive. Next, Descartes states that if God is

Descartes opens Meditations on First Philosophy by telling us that in order to purify our knowledge from falsehood we must become radical skeptics, and question everything we know as we clear our minds from what we believe to be true. Descartes soon realizes that this is a major problem. Because if he is doubtful of everything, there is nothing to be known as true and he would have no foundation to build his thoughts off of. Pondering this, he came to realize that he himself must be real because of his ability to think and to doubt. He then concludes that his sensory perception as well as imagination cannot be trusted because it is impossible to determine reality this way. In dreams, our sensations are seemingly true, but they are actually false. As for our imaginations, we can conjure up a plethora of impossibilities, so it obvious they cannot be considered reliable. After studying honeycomb wax, he determines that his intellect is the only mental property that can be trusted to produce clear and distinct truths.

Descartes explains that God is perfect and something perfect has to be “good,” because God is good He would not deceive us. God is powerful enough to deceive us about everything but God wouldn’t. So if God cannot deceive us, Descartes created the evil genius who would deceive us. The Evil Genius and God are both extremely powerful and smart, however, the Evil Genius is bad and bad people are capable and can deceive us. Descartes now have a reason to doubt contingent truths and necessary truths (mathematics).

In the first meditation, "Concerning those things that can be called into doubt", Descartes main goal is to distinguish what it is he can take to be true, and what supposed truths hold even the smallest degree of doubt. When he reviews all of his opinions he concludes "eventually [he] is forced to admit that there is nothing among the things [he]believed to be true which it is not permissable to doubt--and not out of frivolity or lack of forethought, but for valid and considered reasons. Thus [he] must be no less careful to withhold assent henceforth even from these beliefs then [he] would from those that are patently false, if [he wishes] to find anything certain."(Pg62) At the beginning of Descartes' meditations, he finds that there is really no concrete pillars of knowledge to base the foundations of his supposed

Descartes defines senses as a part of the process of thinking. He also explains that we can use our senses to help us understand the true nature of things. Descartes struggled with doubt and his senses when he used his ontological proof that God existed. For example, he explains that he is aware that he is not perfect and he makes mistakes. He understands that he must know what perfect is in order to give someone the title. He knew that something perfect lead him to have these ideas and that it must exist. His definition of perfect is unique without the knowledge of anyone else and he defined it as God. For example, Descartes believes that God is perfect and deception is a sign of imperfection. Therefore, Descartes came to the conclusion that God cannot deceive. This example shows that Descartes did struggle to accept his own belief without doubting himself. His ontological argument proved, to Descartes, that through God everything

Descartes as a rationalist believes that knowledge comes from the mind alone. During the First Meditation, Descartes came to the conclusion that there must be some kind of evil deceiver that "leads him to a state of doubt" (Descartes 77). Descartes starts out with the fact that distant sensations are subject to doubt and uncertainty. He then goes on to try and cast doubt onto close sensations. Descartes starts off by stating that close sense perception must be certain because we are not crazy, and only a insane person would doubt what was right in front of them. Descartes then uses the dream argument to cast uncertainty on close sense perception because "they are as lively, vivid and clear as reality is when we are awake" (Descartes 76). Descartes then states that geometry and math are certain. "For whether I am awake or sleeping, two and three added together always make five, and a square never has more than four sides; and it does not seem possible that truths so apparent can be suspected of any falsity or uncertainty" (Descartes 98). Descartes comes to realize this certainty because math, geometry, and the simple sciences can be understood and proved through logic and reasoning. He then uses his Deceiver Argument to cast doubt on close sensations. He questions how we know for certain that God is good, and how we know that

Descartes’ first meditation, his main objective is to present three skeptical arguments to bring doubt upon what he considers his basic beliefs. Descartes believes this to be an intricate part of his complete epistemological argument. Descartes skeptical arguments are not intended to be a denial of his basic beliefs. On the contrary, he uses these arguments to help prove one of his main theses, which is the existence of God. One of the main premises that Descartes uses in his proof for the existence of God comes from the evil demon argument, which he proposed, in the first meditation. It is this evil demon argument, which will be the topic of the following discussion.

Descartes' meditations are created in pursuit of certainty, or true knowledge. He cannot assume that what he has learned is necessarily true, because he is unsure of the accuracy of its initial source. In order to purge himself of all information that is possibly wrong, he subjects his knowledge to methodic doubt. This results in a (theoretical) doubt of everything he knows. Anything, he reasons, that can sustain such serious doubt must be unquestionable truth, and knowledge can then be built from that base. Eventually, Descartes doubts everything. But by doubting, he must exist, hence his "Cogito ergo sum".

Descartes believes that knowledge comes from within the mind. This is a single indisputable fact to build on that can be gained through individual reflection. While seeking true knowledge, Descartes writes his Six Meditations. In these meditations, Descartes tries to develop a strong foundation, which all knowledge can be built upon. In the First Meditation, Descartes begins developing this foundation through the method of doubt. He casts doubt upon all his previous beliefs, including “matters which are not entirely certain and indubitable [and] those which appear to be manifestly false.” (Descartes, p.75, par.3) Once Descartes clears away all beliefs that can be called into doubt, he can then build a strong base for all true