Dualism
5. Descartes is a substance dualist. He uses different arguments to prove that mind and body are two different things. The three arguments are The Argument from Doubt, The Argument from Divisibility and The Argument from Consciousness. The Argument from Doubt · I can't doubt the existence of my mind. · I can doubt the existence of my body. · If two things do not have exactly identical properties, then they cannot be identical. · Therefore, my mind is not identical with my body. The first premise comes from Descartes' famous, "I think, therefore I am", in other words we can't doubt the existence of our minds since the very act of doubting requires a mind. This is self evident. The second premise comes from Descartes noting that it is possible that we are being deceived in all our perceptions of the world and our own bodies, meaning that we can't take it for granted even that we have a body.