In every real man a child is hidden that wants to play.

...the only psychologist from whom I have anything to learn.

The greater the obstacle the more glory in overcoming it. - What does not destroy makes me stronger.

"What is good?" ye ask. To be brave is good. Let the little girls say: "To be good is what is pretty, and at the same time touching."

[Heraclitus' language] dispenses with lightness and artificial decoration, foremost out of disgust for humanity and out of [his own] defiant feeling.

Whoever gives advice to a sick person acquires a feeling of superiority over him, whether the advice be accepted or rejected.

Genteel women suppose that those things do not really exist about which it is impossible to talk in polite company.