future, it is because he has become more prudent and not because he has become more moral. If he regrets his crimes of the past, it is because his punishment, and not his so-called conscience, hurts him. But what, then, is conscience? That there is such a thing every reasonable man knows. But what is its nature and what is its origin? If it is not the regret which follows punishment, what is it? Nietzsche answers that it is nothing more than the old will to power, turned inward. In the days of the cave men, a man gave his will to power free exercise. Any act which increased his power over his environment, no matter how much it damaged other men, seemed to him good. He knew nothing of morality. Things appeared to him, not as good or evil, but as good or bad--beneficial or harmful. But when civilization was born, there arose a necessity for controlling and regulating this will power. The individual had to submit to the desire of the majority and to conform to nascent codes of morality. The result was that his will to power, which once spent itself in battles with other individuals, had to be turned upon himself. Instead of torturing others, he began to torture his own body and mind. His ancient delight in cruelty and persecution (a characteristic of all healthy animals) remained, but he could not longer satisfy it upon his fellow men and so he turned it upon himself, and straightway became a prey to the feeling of guilt, of sinfulness, of wrong-doing--with all its attendant horrors. Now, one of the first forms that this self-torture took was primitive man's accusation against himself that he was not properly grateful for the favors of his god. He saw that many natural phenomena benefited him, and he thought that these phenomena occurred in direct obedience to the deity's command. Therefore, he regarded himself as the debtor of the deity, and constantly accused himself of neglecting to discharge this debt, because he felt that, by so accusing, he would be most apt to discharge it in full, and thus escape the righteous consequences of insufficient payment. This led him to make sacrifices--to place food and drink upon his god's altar, and in the end, to sacrifice much more valuable things, such, for instance, as his first born child. The more vivid the idea of the deity became and the more terrible he appeared, the more man tried to satisfy and appease him. In the early days, it was sufficient to sacrifice a square meal or a baby. But when Christianity--with its elaborate and certain theology--arose, it became necessary for a man to sacrifice himself.