Something might be true while being harmful and dangerous in the highest degree. Indeed, it might be a basic characteristic of existence that those who know it completely would perish, in which case the strength of a spirit should be measured according to how much of the 'truth' one could still barely endure- or to put it more clearly, to what degree one would require it to be thinned down, shrouded, sweetened, blunted, falsified.
My formula for greatness in a human being is amor fati: that one wants nothing to be different, not forward, not backward, not in all eternity. Not merely bear what is necessary, still less conceal it—all idealism is mendaciousness in the face of what is necessary—but love it
Over immense periods of time the intellect produced nothing but errors. A few of these proved to be useful and helped to preserve the species: those who hit upon or inherited these had better luck in their struggle for themselves and their progeny. Such erroneous articles of faith... include the following: that there are things, substances, bodies; that a thing is what it appears to be; that our will is free; that what is good for me is also good in itself.
Good deeds shun the light as anxiously as evil deeds: the latter fear that disclosure will bring on pain (as punishment), while the former fear that disclosure will take away pleasure (that pure pleasure, that pleasure per se, which immediately ceases once the vanity's satisfaction is added).
That a person cannot and consequently will not defend himself, does not yet cast disgrace upon him in our eyes ; but we despise the person who has neither the ability nor the good will for revenge whether it be a man or a woman.