The love of one sole being is a barbarism; for it will be employed to the detriment of all the rest. So too the love of God.

Belief in form, but disbelief in content - that's what makes an aphorism charming.

Insanity in individuals is something rare - but in groups, parties, nations and epochs, it is the rule.

Youth is an unpleasant period; for then it is not possible or not prudent to be productive in any sense whatsoever.

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

In a man devoted to knowledge, pity seems almost ridiculous, like delicate hands on a cyclops.

Systems of morals are only a sign-language of the emotions.