Is Lewis Consistent?

Lewis: Nature will not verify any theological or metaphysical proposition. She will help to show what it means and not on the Christian premises by accident. The created glory may be expected to give us hints of the uncreated for the one is derived from the other and in some fashion reflects it. It seems almost incommensurate or it seems almost like a contradiction here. And I'm inclined to think that I must be wrong because Lewis is very much smarter than I am."