In this way, then, a cognition going beyond the bounds of possible ex perience yet belonging to the highest interests of humanity disappears, as far as speculative philosophy is concerned, in disappointed expectation; nevertheless the strictness of critique, by proving the impossibil ity of settling anything dogmatically about an object of experience beyond the bounds of experience, performs a not unimportant service for reason regarding this interest, in securing it likewise against all possible assertions of the contrary; this cannot be done otherwise than by proving one's proposition apodictically, or, if that does not succeed, then by seeking the sources of this incapacity, which, if they lie in the necessary limits of our reason, must then subject every opponent to exactly the same law of renunciation for all claims to dogmatic assertions.