Of course the critical investigation, in the Transcendental Analytic, of all propositions that can extend our cognition beyond all actual experience has sufficiently convinced us that they can never lead to anything mote than a possible experience, and if one were not mistrustful of even the clearest of abstract and general doctrines/ and if charming and plau sible prospects did not lure us to reject the compulsion of these doc trines, then of course we might have been able to dispense with our painstaking examination of the dialectical witnesses which a transcen dent reason brings forward on behalf of its pretensions; for we already knew beforehand with complete certainty that all their allegations, while perhaps honestly meant, had to be absolutely null and void, be cause they dealt with informationg which no human being can ever get.