In the realm of [[philosophy]], a famous devil's advocate was Gaunilo, a monk who challenged [[Anselm of Canterbury]]'s [[ontological argument]] for the existence of God, arguing on behalf of "the fool". | In the realm of [[philosophy]], a famous devil's advocate was Gaunilo, a monk who challenged [[Anselm of Canterbury]]'s [[ontological argument]] for the existence of God, arguing on behalf of "the fool". |