Man is at his furthest remove from the animal as a child, his intellect most human. With his fifteenth year and puberty he comes a step closer to the animal; with the sense of possessions of his thirties (the median line between laziness and greediness), still another step. In his sixtieth year of life he frequently loses his modesty as well, then the septuagenarian steps up to us as a completely unmasked beast: one need only look at the eyes and the teeth.
Friedrich Nietzsche (1844–1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 8, p. 336, selection 19, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Unpublished fragments dating to OctoberDecember 1876.