Abstract

It seems that every so often in philosophy some argument widely accepted as conclusive is challenged, and those who have accepted it as well as he who originated it are alleged to have committed serious errors. Of late this sort of challenge has been levelled against Kant’s criticism of cosmological arguments, and has taken two forms. In its first form it is the claim that Kant’s criticism is irrelevant to those cosmological arguments of which Aquinas’s “third way” is paradigmatic. In its second form this challenge is the claim that Kant’s criticism of such arguments is vitiated by a logical error. The first two things to be shown in this essay are that these two claims are mistaken. The re-examination of Kant’s argument involved here is important not merely because it returns Kant’s criticism to its accustomed status. It is also important because it shows two further things. One of these is not too surprising; this is that Kant’s criticism extends to attempts to prove the existence of God which do not involve the use of a scholastic or rationalist philosophical terminology. The other, however, may be fairly surprising to many; this is that Kant’s criticism equally extends to attempts to prove the existence of any ultimate source of things, no matter how un-Platonic or non-Aristotelian or “scientific” that source may be. Thus this essay shows that what Kant has given us is not merely a successful criticism of cosmological arguments to prove the existence of God, but a successful criticism of cosmological arguments. Every such argument includes an ontological one and thereby either fails or begs the question. This in turn sheds some light on why metaphysical systems and religious positions must be presented for consideration rather than proved beyond objection.