The Ontological Argument

518 Words3 Pages
Explain how Descartes developed Anselm’s argument that God’s existence is necessary Firstly, if we briefly look at Anselm and his ontological argument, which appears to be a priori proof of God’s existence. Anselm writes, “we believe that thou art a being than which nothing greater can be conceived”, this meaning that we all have the belief that there is a perfect being, a being which cannot be improved upon. Anselm uses God as this being. In the first form of Anselm’s argument, he says that if God wasn’t real, if he only existed in the mind (as an idea), then a greater being could be imagined to exist both in the mind and in reality. That being would be greater than God. Therefore, for God to be the greatest being, he must exist in both the mind and in reality. In Anselm’s second form of the argument, he talks about contingent and necessary beings. A contingent being is one which has been created, one which will go in and out of existence- a being which doesn’t have to exist. For example, humans are contingent beings, we have been created, we live and one day we’ll die. Whereas, a necessary being is a being which has to exist; we cannot imagine it not existing. A necessary being does not move in and out of existence, however always exists. God, being the greatest being, has to be a necessary being, as necessary beings are the greatest possible beings. We have proof that God is a necessary being, as God is self originated; God is independent of all other beings. Also, you cannot imagine God going in and out of existence- God is transcendent (not limited by time or space), proving God is necessary rather than contingent. Descartes then took Anselm’s ontological argument and developed it. As a mathematician, Descartes concentrated on using reason more than faith to explain the necessary existence of God. This is the difference between Anselm and
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