People to whom their daily life appears too empty and monotonous easily grow religious; this is comprehensible and excusable, only they have no right to demand religious sentiments from those whose daily life is not empty and monotonous.

I have learned to walk: since then I have run. I have learned to fly: since then I do not have to be pushed in order to move. Now I am nimble, now I fly, now I see myself under myself, now a god dances within me.

We come to recognize that playfulness, as a philosophical stance, can be very serious indeed; and moreover, that it possesses an unfailing capacity to arouse ridicule and hostility in those among us who crave certainty, reverence, and restraint.

Mediocrity is the most effective mask a superior spirit can wear, because to the great majority, which is to say, to the mediocre,it will not suggest a disguise:--and yet it is precisely for their sake that he puts it on--so as not to arouse them, and, indeed, not infrequently to avoid this out of pity and benevolence.

When one is young, one venerates and despises without that art of nuances which constitutes the best gain of life.

Species do not grow more perfect: the weaker dominate the strong, again and again- the reason being that they are the great majority, and they are also cleverer. Darwin forgot the mind (-that is English!): the weak possess more mind. ... To acquire mind, one must need mind-one loses it when one no longer needs it.

When our brain feels too weak to deal with our opponent's objections, our heart answers by casting suspicion on their underlying motives.