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His conscience?—One apprehends at once that the idea “conscience,” which is here seen in its supreme manifestation, supreme in fact to almost the point of strangeness, should already have behind it a long history and evolution. The ability to guarantee oneself with all due pride, and also at the same time to say yes to oneself—that is, as has been said, a ripe fruit, but also a late fruit:—How long must needs this fruit hang sour and bitter on the tree! And for an even longer period there was not a glimpse of such a fruit to to be had—no one had taken it on himself to promise it, although everything on the tree was quite ready for it, and everything was maturing for that very consummation. “How is a memory to be made for the man-animal? How is an impression to be so deeply fixed upon this ephemeral understanding, half dense, and half silly, upon this incarnate forgetfulness, that it will be permanently present?” As one may imagine, this primeval problem was not solved by exactly gentle answers and gentle means; perhaps there is nothing more awful and more sinister in the early history of man than his system of mnemonics. “Something is burnt in so as to remain in his memory: only that which never stops hurting remains in his memory.” This is an axiom of the oldest (unfortunately also the longest) psychology in the world. It might even be said that wherever solemnity, seriousness, mystery, and gloomy colours are now found in the life of the men and of nations of the world, there is some survival of that horror which was once the universal concomitant of all promises, pledges, and obligations. The past, the past with all its length, depth, and hardness, wafts to us its breath, and bubbles up in us again, when we become “serious.” When man thinks it necessary to make for himself a memory, he never accomplishes it without blood, tortures, and sacrifice; the most dreadful sacrifices and forfeitures (among them the sacrifice of the firstborn), the most loathsome mutilation (for instance, castration), the most cruel rituals of all the religious cults (for all religions are really at bottom systems of cruelty)—all these things originate from that instinct which found in pain its most potent mnemonic. In a certain sense the whole of asceticism is to be ascribed to this: certain ideas have got to be made inextinguishable, omnipresent, “fixed,” with the object of hypnotising the whole nervous and intellectual system through these “fixed ideas”—and the ascetic methods and modes of life are the means of freeing those ideas from the competition of all other ideas so as to make them “unforgettable.” The worse memory man had, the ghastlier the signs presented by his customs; the severity of the penal laws affords in particular a gauge of the extent of man’s difficulty in conquering forgetfulness, and in keeping a few primal postulates of social intercourse ever present to the minds of those who were the slaves of every momentary emotion and every momentary desire. We Germans do certainly not regard ourselves as an especially cruel and hard-hearted nation, still less as an especially casual and happy-go-lucky one; but one has only to look at our old penal ordinances in order to realise what a lot of trouble it takes in the world to evolve a “nation of thinkers” (I mean: the European nation which exhibits at this very day the maximum of reliability,