If they possessed sufficient knowledge to be able to teach them, they would not do so.' 'Why?' 'Because they would have devoted their lives to the study of them.'“ — (Goethe's translation, p. 104.) Lichtenberg too says: “I have rather observed that professional people are often exactly those who do not know best.” But to return to the Kantian Ethics: most persons, provided only the conclusion reached agrees with their moral feelings, immediately assume that there is no flaw to be found in its derivation; and if the process of deduction looks difficult, they do not trouble themselves much about it, but are content to trust the faculty.

Thus the foundation which Kant gave to his moral law by no means consists in its being proved empirically to be a fact of consciousness; neither does he base