Man demands truth and fulfills this demand in moral intercourse with other men; this is the basis of all social life. One anticipates the unpleasant consequences of reciprocal lying. From this there arises the duty of truth. We permit epic poets to lie because we expect no detrimental consequences in this case. Thus the lie is permitted where it is considered something pleasant. Assuming that it does no harm, the lie is beautiful and charming.
A strong and well-constituted man digests his experiences (deeds and misdeeds all included) just as he digests his meats, even when he has some tough morsels to swallow.
Those who are failures from the start, downtrodden, crushed -- it is they, the weakest, who must undermine life among men, who call into question and poison most dangerously our trust in life, in man, and in ourselves.
Even today many educated people think that the victory of Christianity over Greek philosophy is a proof of the superior truth of the former - although in this case it was only the coarser and more violent that conquered the more spiritual and delicate. So far as superior truth is concerned, it is enough to observe that the awakening sciences have allied themselves point by point with the philosophy of Epicurus, but point by point rejected Christianity.
Since men do not really respect anything unless it was established long ago and has developed slowly over time, those who want tokeep on living after their death must take worry not only about their future generations but even more about their past: that is why tyrants of all kinds (including tyrannical artists and politicians) like to do violence to history, so that it will appear as a preparation and stepladder to themselves.
If you are too weak to give yourselves your own law, then a tyrant shall lay his yoke upon you and say: "Obey! Clench your teeth and obey!" And all good and evil shall be drowned in obedience to him.