The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.

Everyone thinks that the principal thing to the tree is the fruit, but in point of fact the principal thing to it is the seed.

It is not to everyone's taste that truth should be pronounced pleasant. But at least let no one believe that error becomes truth when it is pronounced unpleasant.

Become who you are!

Animals know nothing of themselves, and they also know nothing of the world.

Happiness is a fata morgana. the only way to not end up unhappy is to not long for happiness.

Christianity has taken the part of all the weak, the low, the botched; it has made an ideal out of antagonism to all the self preservative instincts of sound life; it has corrupted even the faculties of those natures that are intellectually most vigorous, by representing the highest intellectual values as sinful, as misleading, as full of temptation.