Note 229 — Chapter XVIII · GERMAN FREETHOUGHT IN THE SEVENTEENTH AND EIGHTEENTH CENTURIES

21. The critical philosophy of Immanuel Kant (1724–1804) may be said to represent most comprehensively the outcome in German intelligence of the higher freethought of the age, insofar as its results could be at all widely assimilated. In its most truly critical part, the analytic treatment of previous theistic systems in the Critique of Pure Reason (1781), he is fundamentally anti-theological; the effect of the argument being to negate all previously current proofs of the existence and cognizableness of a “supreme power” or deity. Already the metaphysics of the Leibnitz-Wolff school were discredited;229 and so far Kant could count on a fair hearing for a system which rejected that of the schools. Certainly he meant his book to be an antidote to the prevailing religious credulity. “Henceforth there were to be no more dreams of ghost-seers, metaphysicians, and enthusiasts.”230 On his own part, however, no doubt in sympathy with the attitude of many of his readers, there followed a species of intuitional reaction. In his short essay What is Freethinking?231 (1784) he defines Aufklärung or freethinking as “the advance of men from their self-imputed minority”; and “minority” as the inability to use one’s own understanding without another’s guidance. “Sapere aude; dare to use thine own understanding,” he declares to be the motto of freethought: and he dwells on the laziness of spirit which keeps men in the state of minority, letting others do their thinking for them as the doctor prescribes their medicine. In this spirit he justifies the movement of rational criticism while insisting, justly enough, that men have still far to go ere they can reason soundly in all things. If, he observes, “we ask whether we live in an enlightened (aufgeklärt) age the answer is, No, but in an age of enlightening (aufklärung).” There is still great lack of capacity among men in general to think for themselves, free of leading-strings. “Only slowly can a community (Publikum) attain to freethinking.” But he repeats that “the age is the age of aufklärung, the age of Frederick the Great”: and he pays a high tribute to the king who repudiated even the arrogant pretence of “toleration,” and alone among monarchs said to his subjects, “Reason as you will; only obey!”