The most spiritual men, as the strongest, find their happiness where others would find their destruction: in the labyrinth, in hardness against themselves and others, in experiments. Their joy is self-conquest: asceticism becomes in them nature, need, and instinct. Difficult tasks are a privilege to them; to play with burdens that crush others, a recreation. Knowledge-a form of asceticism. They are the most venerable kind of man: that does not preclude their being the most cheerful and the kindliest.
Friedrich NietzscheThe relatives of a suicide hold it against him that out of consideration for their reputation he did not remain alive.
Friedrich NietzscheMan is at his furthest remove from the animal as a child, his intellect most human. With his fifteenth year and puberty he comes astep 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 NietzscheLogic, too, also rests on assumptions that do not correspond to anything in the real world, e.g., on the assumption that there areequal things, that the same thing is identical at different points in time: but this science arose as a result of the opposite belief (that such things actually exist in the real world). And it is the same with mathematics, which would certainly never have arisen if it had been understood from the beginning that there is no such thing in nature as a perfectly straight line, a true circle, and absolute measure.
Friedrich Nietzsche