Essay about Descartes´ Mental and Physical Substances

René Descartes believed that the mind and body are separate; that the senses could not always be trusted, but that because we as humans are able to think about our existence, we possess some sort of entity separate than our fleshly body. I believe this separate entity to be a soul”an immaterial and

Descartian dualism is one of the most long lasting legacies of Rene Descartes’ philosophy. He argues that the mind and body operate as separate entities able to exist without one another. That is, the mind is a thinking, non-extended entity and the body is non-thinking and extended. His belief elicited a debate over the nature of the mind and body that has spanned centuries, a debate that is still vociferously argued today. In this essay, I will try and tackle Descartes claim and come to some conclusion as to whether Descartes is correct to say that the mind and body are distinct.

One, such as Descartes, might argue that because the brain has a physical presence, it is solely an entity of the body; the mind consists only of the intangibles. My response to such a statement is that because the mind exists only in the synapses that comprise the brain, the mind and brain are inseparable and therefore a single entity. Moods and complex emotions are heavily influenced by physical properties of the brain, such as the levels of certain chemicals. The loss of certain components of the brain can lead to an alteration of the mind as well. For example, Alzheimer’s disease causes dementia, a severe alteration of the mind, by destroying certain neurons and synapses. No other organ or appendage of the human body possesses this quality. The removal of a spleen or loss of a limb cannot permanently alter the mind on a primary level.

Descartes concludes from his first meditation that he is a thinking thing, and as long as he thinks, he exists. In the second meditation, Descartes attempts to define what the “thinking thing” that he concluded himself to be in the first meditation actually was. Descartes’ determines that he gains knowledge of the world, that is, knowledge that is separate from the mind, through the senses; and that the senses can deceive. This he outlines within the first meditation, and mentions on the second meditation. Furthermore, in the second meditation, Descartes refuses to define himself as a rational animal, instead going back and relying on labeling him mind as a thinking thing. In the fifth and sixth paragraphs of the second meditation, Descartes distinguishes the body from the soul. Descartes indicates that there is the presence of the body, and it seems to be in the physical world, but he also notes that his mind does not seem to exist in the same manner. Descartes also claims that the ability to perceive is a power of the soul, but inoperable without the body. Descartes then explores another object with physical substance, which is a piece of wax. The piece of wax is undeniably physical; it takes up space within the material world. The body falls into the category, just as any other physical object in the material world. The main point of Descartes’ second meditation is that any given person can know more about their mind than of the world surrounding them.

In the Sixth Meditation, Descartes makes a point that there is a distinction between mind and body. It is in Meditation Two when Descartes believes he has shown the mind to be better known than the body. In Meditation Six, however, he goes on to claim that, as he knows his mind and knows clearly and distinctly that its essence consists purely of thought. Also, that bodies' essences consist purely of extension, and that he can conceive of his mind and body as existing separately. By the power of God, anything that can be clearly and distinctly conceived of as existing separately from something else can be created as existing separately. However, Descartes claims that the mind and body have been created separated without good reason. This

In the Meditations, Rene Descartes attempts to doubt everything that is possible to doubt. His uncertainty of things that existence ranges from God to himself. Then he goes on to start proving that things do exist by first proving that he exists. After he establishes himself he can go on to establish everything else in the world. Next he goes to prove that the mind is separate then the body. In order to do this he must first prove he has a mind, and then prove that bodily things exist. I do agree with Descartes that the mind is separate from the body. These are the arguments that I agree with Descartes.

Like many people today, Descartes believed that the mind and soul were separate. He believed that the mind’s purpose was only for “thinking” and “non-extended” things. While, the body is an extension; non-thinking. Descartes thought that the mind and body were different substances, thus they

At the beginning of Meditation three, Descartes has made substantial progress towards defeating skepticism. Using his methods of Doubt and Analysis he has systematically examined all his beliefs and set aside those which he could call into doubt until he reached three beliefs which he could not possibly doubt. First, that the evil genius seeking to deceive him could not deceive him into thinking that he did not exist when in fact he did exist. Second, that his essence is to be a thinking thing. Third, the essence of matter is to be flexible, changeable and extended.

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.

Rene Descartes decision to shatter the molds of traditional thinking is still talked about today. He is regarded as an influential abstract thinker; and some of his main ideas are still talked about by philosophers all over the world. While he wrote the "Meditations", he secluded himself from the outside world for a length of time, basically tore up his conventional thinking; and tried to come to some conclusion as to what was actually true and existing. In order to show that the sciences rest on firm foundations and that these foundations lay in the mind and not the senses, Descartes must begin by bringing into doubt all the beliefs that come to him by the senses. This is done in the first of six

Descartes dualism proposal is an interesting concept due to its simplicity. Yet, being so simply makes one more and more want to dismiss. His argument begins with what is known as Real Distinction. This is the term used to describe a substance or non-physical object that exists on due to the help of a higher being or power—be it God or science, though Descartes would likely argue for God. The mind, in Descartes view, can only exist because of this higher power. One knows the mind exists simply due to being able to ask the question of its existence. However, to prove that the body exists one must think about the physical nature, shape, and sensations of said body. In Descartes sixth meditation he discusses the idea that a person can conceive their mind without their body, but cannot conceive of the reverse. This argument seems to be the most sounds.

Descartes believes that since the mind and the body are two different things, then they can exist separately. This is the theory of dualism.

“The mind-body dualism, in philosophy, is the fact that any theory that the mind and body are distinct kinds of substances or natures. This position implies that mind and body not only differ in meaning, but refer to different kinds of entities (Britannica).” The most basic form of dualism is substance dualism. Substance dualism is the idea that he mind and body are composed of two ontologically distinct substances. According to one who believes and studies dualism, the mind is comprised of a non-physical substance, while the body is constituted of the physical substance, also known as matter. Dualism is closely related to the philosophy of Rene Descartes. Descartes identified the mind with consciousness and self-awareness and distinguished this from the brain. He believed that the brain was the seat of all intelligence. This lead to a great debate over the mind and body. So, ultimately, what is the nature of the mind and consciousness and its relationship to the body?

Perhaps one of the most controversial issues in the Cartesian view of mind and body is how the two substances interact. In the book The passion of the Soul Descartes returned to the problem; he suggests that there is a gland in the middle of the brain in charge of the interaction; he maintains that “from there it radiates through the rest of the body by means of the animal spirits”) (Descartes, 1649/1984, p.341). But what does he mean? The pineal gland is itself physical; Gassendi pointed out that “If it is a physical point, the difficulty still stands, since such a point does not wholly lack of parts. If is a mathematical point, then such a point, as you are aware is, purely imaginary” (Descartes, 1641/1985, p.236) To

Building off his established idea of the Cogito, Descartes continues to formulate an idea of how the world operates. He arrives upon one of the most widely held metaphysical opinions, especially among a majority of the world’s religions, which is mind-body dualism. Mind-body dualism states that there are two types of entities in the world; those which have extension and measurable qualities such as the body and existing separately is the non physical mind.