Abstract

Within the history of western philosophy, there have been a number of classic ways of arguing for the existence of God. The most important of these are the teleological argument, the ontological argument, the cosmological argument, the moral argument, and a loose family of pragmatic considerations affirming the prudence or desirability of theistic belief. Demonstrating the weaknesses of these approaches is crucial for establishing the ‘negative’ case for atheism. This essay begins by defining what it is that philosophers normally means by ‘God’—i.e., what it is that the classic arguments in the philosophy of religion are arguing about. It then outlines and critiques each main approach in turn, focusing primarily on its most classic and influential expressions within the western philosophical tradition.