Such a dialogue is rarely as satisfying as reading the originals and coming to your own understanding. Why don't I simply suggest that you read Hume's "Dialogues Concerning Natural Religion", particularly part IX, and Kant's "Critique of Pure Reason"?
I whet my appetite on the _Prolegomena_ and got food poisoning. It was a quagmire of restatements that left me no appetite for the full Critique. Do you think I'm missing anything?
I thought you Darwinists wanted people to think for themselves. Think for yourself! This is a debate between two world views. Referring me to books is as useful as posting links instead of answering. I can refer you to books that refute Hume and Kant. To what end?
Certain philosophers have attempted to answer certain stubborn questions about reality. As on a test, only correct answers count.