One way to proceed to the Kantian dialectic which would follow quite appropriately upon the two preceding essays would be to consider whether the General Theory of Relativity can be accommodated within his philosophy. I do not, however, possess the technical mathematical and physical knowledge to grapple successfully with this theory. Hence, I must forego this route. Kant himself, though, carried his dialectic in another direction: toward a negative criticism of the tradition. And this is the way we shall proceed.