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.
A belief, however necessary it may be for the preservation of a species, has nothing to do with truth. The falseness of a judgment is not for us necessarily an objection to a judgment. The question is to what extent it is life-promoting, life-preserving, species preserving, perhaps even species cultivating. To recognize untruth as a condition of life--that certainly means resisting accustomed value feelings in a dangerous way; and a philosophy that risks this would by that token alone place itself beyond good and evil.
O sancta simplicitas! What strange simplification and falsification mankind lives on! One can never cease to marvel once one has acquired eyes for this marvel! How we have made everything around us bright and free and easy and simple! How we have known how to bestow on our senses a passport to everything superficial, on our thoughts a divine desire for wanton gambling and false conclusions! - how we have from the very beginning understood how to retain our ignorance so as to enjoy an almost inconceivable freedom, frivolity, impetuosity, bravery, cheerfulness of life, so as to enjoy life!
Speaking generally, punishment hardens and numbs, it produces concentration, it sharpens the consciousness of alienation, it strengthens the power of resistance.
If we make sacrifices in doing good or in doing ill, it does not alter the ultimate value of our actions; even if we stake our life in the cause, as martyrs do for the sake of our church : it is a sacrifice to our longing for power, or for the purpose of conserving our sense of power.