The ontological argument uses the definition of [[God]] to prove His existence. It was originally proposed by [[Anselm]] and remained influential for centuries, and was later used by [[Descartes]]. Anselm's proof is as follows: | The ontological argument uses the definition of [[God]] to prove His existence. It was originally proposed by [[Anselm]] and remained influential for centuries, and was later used by [[Descartes]]. Anselm's proof is as follows: |