In the Meditations, Descartes offers three arguments for the human soul or mind to exist separately from the body. In the first, with "I think, therefore I am", he realizes that the most basic form of existence is thinking, that is, the consciousness of himself, and based on the undoubted certainty of this, he concludes that he is different from the body, which is doubtful like other sensible
... [Show full abstract] things. In the second, Descartes argues that because the mind and body can be considered conceptually separate from each other, they are also separate in reality. Because there is no reason why our thinking should not conform to reality. In the third, Descartes appeals to the Platonic argument of the simplicity of the soul. Accordingly, while the soul is indivisible in all its mental activities, the body can be divided and therefore diminished because it is extended. However, with the decrease of the body, there is no decrease in the soul. This indicates that the soul or mind is separate from the body. Keywords: Descartes, Soul, Mind, Body, Simplicity.