Nothing but confusion could result. The religious man has no reason to be jealous of the advance of the sciences. The interests of faith itself are furthered by such investigation. Illusions as to fact which have been mistakenly identified with faith are thus done away. Nevertheless, its own eternal right is assured to faith. With it lies the interpretation of the facts of nature and of history, whatever those facts may be found to be. With the practical reason is the interpretation of these facts according to their moral worth, a worth of which the pure reason knows nothing and scientific investigation reveals nothing. Here was a deliverance not unlike that which the Reformation had brought. The mingling of Aristotelianism and religion in the scholastic theology Luther had assailed. Instead of assent to human dogmas Luther had the immediate assurance of the heart that God was on his side. And what is that but a judgment of the practical reason, the response of the heart in man to the spiritual universe? It is given in experience. It is not mediated by argument. It cannot be destroyed by syllogism. It needs no confirmation from science. It is capable of combination with any of the changing interpretations which science may put upon the outward universe. The Reformation had, however, not held fast to its great truth. It had gone back to the old scholastic position. It had rested faith in an essentially rationalistic manner upon supposed facts in nature and alleged events of history in connection with the revelation. It had thus jeopardised the whole content of faith, should these supposed facts of nature or events in history be at any time disproved. Men had made faith to rest upon statements of Scripture, alleging such and such acts and events. They did not recognise these as the naïve and childlike assumptions concerning nature and history which the authors of Scripture would naturally have. When, therefore, these statements began with the progress of the sciences to be disproved, the defenders of the faith presented always the feeble spectacle of being driven from one form of evidence to another, as the old were in turn destroyed. The assumption was rife at the end of the eighteenth century that Christianity was discredited in the minds of all free and reasonable men. Its tenets were incompatible with that which enlightened men infallibly knew to be true. It could be no long time until the hollowness and sham would be patent to all. Even the interested and the ignorant would be compelled to give it up. Of course, the invincibly devout in every nation felt of instinct that this was not true. They felt that there is an inexpugnable truth of religion. Still that was merely an intuition of their hearts. They were right. But they were unable to prove that they were right, or even to get a hearing with many of the cultivated of their age. To Kant we owe the debt, that he put an end to this state of things.