The ontological argument describes God as “a being than which nothing greater can be conceived”, Anselm argued that the greatest possible being must exist otherwise he would not be the greatest possible being, although he must be the greatest possible being in every way including mind and reality. Anselm said atheists can define God even if they don’t believe in him. René Descartes said “I think therefore I am”, this means that if you can think about it you do exist, therefore if we think about God; he must exist. God must have all perfections in order to be the greatest being; existence was perfection is …show more content…
The answer has to be ‘A God who cannot be thought of as not existing’. So that, Anselm argued in his book Proslogion, proves logically that God’s existence is necessary. “There is no doubt that there exists a being than which nothing greater can be conceived”, this is simply saying that no one can think of anything greater than God and therefore God is the greatest possible