This happy thought, had it stood alone, might have seemed a little fantastic; but it was only a laboured means of re-establishing the theology of Leibniz, in which Kant privately believed, behind the transcendental idealism which he had put forward professorially. The dogmatic system from which he started seemed to him, as it stood, largely indefensible and a little oppressive. To purify it he [Pg 59] adopted a fallacious principle of criticism, namely, that our ideas are all we can know, a principle which, if carried out, would undermine that whole system, and every other. He, therefore, hastened to adopt a corrective principle of reconstruction, no less fallacious, namely, that conscience bids us assume certain things to be realities which reason and experience know nothing of. This brought him round to a qualified and ambiguous form of his original dogmas, to the effect that although there was no reason to think that God, heaven, and free-will exist, we ought to act as if they existed, and might call that wilful action of ours faith in their existence. Thus in the philosophy of Kant there was a stimulating ambiguity in the issue. He taught rather less than he secretly believed, and his disciples, seizing the principle of his scepticism, but lacking his conservative instincts, believed rather less than he taught them. Doubtless in his private capacity Kant hoped, if he did not believe, that God, free-will, and another life subsisted in fact, as every believer had hitherto supposed; it was only the method of proving their reality that had been illegitimate. For no matter how strong the usual arguments might seem (and they did not seem very strong) they could convey no transcendent assurance; on the contrary, the more proofs you draw for anything from reason and [Pg 60] experience, the better you prove that that thing is a mere idea in your mind. It was almost prudent, so to speak, that God, freedom, and immortality, if they had claims to reality, should remain without witness in the sphere of "knowledge," as inadvertently or ironically it was still called; but to circumvent this compulsory lack of evidence God had at least implanted in us a veridical conscience, which if it took itself seriously (as it ought to do, being a conscience) would constrain us to postulate what, though we could never "know" it, happened to be the truth. Such was the way in which the good Kant thought to play hide-and-seek with reality.