I assess the power of a will by how much resistance, pain, torture it endures and knows how to turn to its advantage.

The wreckage of stars - I built a world from this wreckage.

I am interested only in the relations of a people to the rearing of the individual man, and among the Greeks the conditions were unusually favourable for the development of the individual; not by any means owing to the goodness of the people, but because of the struggles of their evil instincts.With the help of favourable measures great individuals might be reared who would be both different from and higher than those who heretofore have owed their existence to mere chance. Here we may still be hopeful: in the rearing of exceptional men.

To be moral, correct, and virtuous is to be obedient to an old established law and custom.

We are unknown to ourselves, we men of knowledge - and with good reason. We have never sought ourselves - how could it happen that we should ever find ourselves? It has rightly been said: "Where your treasure is, there will your heart be also"; our treasure is where the beehives of our knowledge are.

If a man wishes to become a hero, then the serpent must first become a dragon: otherwise he lacks his proper enemy.

We no longer love our knowledge enough once we have passed it on.