this is what I mean by the growing "internalisation" of man: consequently we have the first growth in man, of what subsequently was called his soul. The whole inner world, originally as thin as if it had been stretched between two layers of skin, burst apart and expanded proportionately, and obtained depth, breadth, and height, when man's external outlet became obstructed. These terrible bulwarks, with which the social organisation protected itself against the old instincts of freedom (punishments belong pre-eminently to these bulwarks), brought it about that all those instincts of wild, free, prowling man became turned backwards against man himself. Enmity, cruelty, the delight in persecution, in surprises, change, destruction—the turning all these instincts against their own possessors: this is the origin of the "bad conscience." It was man, who, lacking external enemies and obstacles, and imprisoned as he was in the oppressive narrowness and monotony of custom, in his own impatience lacerated, persecuted, gnawed, frightened, and ill-treated himself; it was this animal in the hands of the tamer, which beat itself against the bars of its cage; it was this being who, pining and yearning for that desert home of which it had been deprived, was compelled to create out of its own self, an adventure, a torture-chamber, a hazardous and perilous desert—it was this fool, this homesick and desperate prisoner—who invented the "bad conscience." But thereby he introduced that most grave and sinister illness, from which mankind has not yet recovered, the suffering of man from the disease called man, as the result of a violent breaking from his animal past, the result, as it were, of a spasmodic plunge into a new environment