Beyond Good and Evil by Friedrich Nietzsche Chapter 5 Page 43

— that is now the moral perspective, here again fear is the mother of morals. It is by the loftiest and strongest instincts, when they break out passionately and carry the individual far above and beyond the average, and the low level of the gregarious conscience, that the self-reliance of the community is destroyed, its belief in itself, its backbone, as it were, breaks, consequently these very instincts will be most branded and defamed. The lofty independent spirituality, the will to stand alone, and even the cogent reason, are felt to be dangers, everything that elevates the individual above the herd, and is a source of fear to the neighbour, is henceforth called EVIL, the tolerant, unassuming, self-adapting, self-equalizing disposition, the MEDIOCRITY of desires, attains to moral distinction and honour.