this tyranny, this arbitrariness, this severe and magnificent stupidity, has EDUCATED the spirit; slavery, both in the coarser and the finer sense, is apparently an indispensable means even of spiritual education and discipline. One may look at every system of morals in this light: it is "nature" therein which teaches to hate the laisser-aller, the too great freedom, and implants the need for limited horizons, for immediate duties—it teaches the NARROWING OF PERSPECTIVES, and thus, in a certain sense, that stupidity is a condition of life and development. "Thou must obey some one, and for a long time; OTHERWISE thou wilt come to grief, and lose all respect for thyself"—this seems to me to be the moral imperative of nature, which is certainly neither "categorical," as old Kant wished (consequently the "otherwise"), nor does it address itself to the individual (what does nature care for the individual!), but to nations, races, ages, and ranks; above all, however, to the animal "man" generally, to MANKIND.