[144] [This illustration is also given in the Logic (p. 57); where the three modi of belief, Opinion, Faith, and Knowledge, are distinguished from each other. Cf. Critique of Pure Reason, Methodology, c. ii. § 3.]
[145] [The speculations of Swedenborg seem to have always had a strange fascination for Kant. He says of two reported cases of Swedenborg’s clairvoyance that he knows not how to disprove them (Rosenkranz vii. 5); but in his Anthropology §§ 35, 37, he attacks Swedenborgianism as folly. So in an early essay, Dreams of a Visionary explained by Dreams of Metaphysics, he avows his scepticism as to the value of the information which “psychical research” can supply about the spirit-world, though he is careful not to commit himself to any dogmatic statement on the subject of ghosts. In the Critique of Pure Reason (when discussing the Postulates of Empirical Thought) he gives, as an instance of a concept inconsistent with the canons of possibility, “a power of being in a community of thought with other men, however distant from us.”]
[146] [Cf. supra, p. 229.]
[147] I here extend, correctly as it seems to me, the concept of a thing of fact beyond the usual signification of this word. For it is not needful, not even feasible, to limit this expression merely to actual experience, if we are talking of the relation of things to our cognitive faculties; for an experience merely possible is quite sufficient in order that we may speak of them merely as objects of a definite kind of cognition.
[148] [Cf. introduction to Logic, p. 59 note.]
[149] [Second Edition.]
[150] Things of faith are not therefore articles of faith; if we understand by the latter things of faith to the confession of which (internal or external) we can be bound. Natural theology contains nothing like this. For since they, as things of faith (like things of fact) cannot be based on theoretical proofs, [they are accepted by] a belief which is free and which only as such is compatible with the morality of the subject.
[151] The final purpose which the moral law enjoins upon us to further, is not the ground of duty; since this lies in the moral law, which, as formal practical principle, leads categorically, independently of the Objects of the faculty of desire (the material of the will) and consequently of any purpose whatever. This formal characteristic of my actions (their subordination under the principle of universal validity), wherein alone consists their inner moral worth, is quite in our power; and I can quite well abstract from the possibility or the unattainableness of purposes which I am obliged to promote in conformity with that law (because in them consists only the external worth of my actions) as something which is never completely in my power, in order only to look to that which is of my doing. But then the design of promoting the final purpose of all rational beings (happiness so far as it is possible for it to be accordant with duty) is even yet prescribed by the law of duty. The speculative Reason, however, does not see at all the attainableness of this (neither on the side of our own physical faculty nor on that of the co-operation of nature). It must rather, so far as we can judge in a rational way, hold the derivation, by the aid of such causes, of such a consequence of our good conduct from mere nature (internal and external) without God and immortality, to be an ungrounded and vain, though well-meant, expectation; and if it could have complete certainty of this judgement, it would regard the moral law itself as the mere deception of our Reason in a practical aspect. But since the speculative Reason fully convinces itself that the latter can never take place, but that on the other hand those Ideas whose object lies outside nature can be thought without contradiction, it must for its own practical law and the problem prescribed thereby, and therefore in a moral aspect, recognise those Ideas as real in order not to come into contradiction with itself.
[152] It is a trust in the promise of the moral law; [not however such as is contained in it, but such as I put into it and that on morally adequate grounds.[153] For a final purpose cannot be commanded by any law of Reason without this latter at the same time promising, however uncertainly, its attainableness; and thus justifying our belief in the special conditions under which alone our Reason can think it as attainable. The word fides expresses this; and it can only appear doubtful, how this expression and this particular Idea came into moral philosophy, since it first was introduced with Christianity, and the adoption of it perhaps might seem to be only a flattering imitation of Christian terminology. But this is not the only case in which this wonderful religion with its great simplicity of statement has enriched philosophy with far more definite and purer concepts of morality, than it had been able to furnish before; but which, once they are there, are freely assented to by Reason and are assumed as concepts to which it could well have come of itself and which it could and should have introduced.]
[153] [Second Edition.]