, or in terms of people, that human personality is completely determined by social conditioning and genetic makeup. Another idea deals with the notion that freedom or freewill is not compatible with God's omniscience. To put it another way, if God is all knowing, and knows what I will do in the future, then I must do what God knows I will do in the future. This means that I have no choice in what God knows I will do, since God already knows that I will do it, therefore eliminating my freewill. These are some of the considerations when thinking about Descartes proof of God's existence. In the Sixth Meditation, the last section in our text, Descartes hopes to prove the existence of the external world and matter (physical objects located in space). To do this first he again acknowledges the existence of minds as an immaterial substance and God. Next, he shows that external ideas, or images of things are neither fashioned by himself or by God because he has ideas of things that do!
             n't depend on his will. From this he can say that he will know matter exists if its image was not a product of the mind or god. To prove this attributes the existence of external ideas to the imagination, which is the psychological power of receiving and processing images. Then he says that thinking is his only essential property which excludes imagination because thinking or consciousness doesn't require images. He states that the only reason we have an imagination is because we have temporary physical bodies. He then concludes that he is not the cause of his external ideas. To show that God is not the cause of external ideas or images he first states that it is self-evident
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