Descartes
In his Meditation Descartes provides two arguments for the existence of God. One argument is a causal argument while the other one is an ontological argument for the existence of God. The ontological argument for the existence of God that he proposed in fifth Meditation is a straightforward one. Descartes claims that our idea of God is the idea of a perfect being. Perfection entails lack of nothing so, if something is perfect, then it must exist because something that does not exist cannot be perfect. But, God is perfect; therefore, he has to exist. The perfection of God demands that He ...