It is the fact that God exists that determines his thinking. “It is not that my thinking makes it so, or imposes any necessity on anything; on the contrary, it is the necessity of the thing itself, that is, the existence of God, which determines my thoughts in this regard” (Descartes 203). Descartes has this idea that God exists because God has an existence and it allows him to have this idea of ​​his existence. Therefore, it must be true that God exists. This “most perfect being” gave him the ability to think this way. In conclusion, René Descartes succeeds in proving the existence of God. Over the centuries, philosophers have tried to argue and demonstrate the existence of God. René Descartes argued that the fact that we can talk about the supreme and perfect being proves that exists. Perfection and existence somehow go