I am completely certain in advance that he will not have accomplished any of this, not because I believe myself already to be in possession of incontrovertible proofs of these important propositions, but rather because the transcendental critique, which has revealed to me the entire stock of our pure reason, has completely convinced me that just as pure reason is entirely inadequate for affirmative assertions in this field, even less will it know what to do in order to be able to as sert something negative about these questions.