To put it more simply, Nietzsche offers the gospel of prudent and intelligent selfishness, of absolute and utter individualism. "One must learn," sang Zarathustra, "how to love oneself, with a whole and hearty love, that one may find life with oneself endurable, and not go gadding about. This gadding about is familiar: it is called loving one's neighbor.'"[3] His ideal was an aristocracy which regarded the proletariat merely as a conglomeration of draft animals made to be driven, enslaved and exploited. "A good and healthy aristocracy," he said, "must acquiesce, with a good conscience, in the sacrifice of a legion of individuals, who, for its benefit, must be reduced to slaves and tools. The masses have no right to exist on their own account: their sole excuse for living lies in their usefulness as a sort of superstructure or scaffolding, upon which a more select race of beings may be elevated."[4] Rejecting all permanent rules of good and evil and all notions of brotherhood, Nietzsche held that the aristocratic individualist--and it was to the aristocrat only that he gave, unreservedly, the name of human being--must seek every possible opportunity to increase and exalt his own sense of efficiency, of success, of mastery, of power. Whatever tended to impair him, or to decrease his efficiency, was bad. Whatever tended to increase it--at no matter what cost to others--was good. There must be a complete surrender to the law of natural selection--that invariable natural law which ordains that the fit shall survive and the unfit shall perish. All growth must occur at the top. The strong must grow stronger, and that they may do so, they must waste no strength in the vain task of trying to lift up the weak.