Some of our weaknesses are born in us, others are the result of education; it is a question which of the two gives us most trouble.

Every offense is avenged on earth.

Mathematics can remove no prejudices and soften no obduracy. It has no influence in sweetening the bitter strife of parties, and in the moral world generally its action is perfectly null.

Colour itself is a degree of darkness.

You will find the most pronounced hatred of other nations on the lowest cultural levels. There is, though, a level where the hatred disappears completely and where one so to speak stands above the nations and where one experiences fortune or misfortune of a neighboring country as if they had happened to one's own.

He who enjoys doing and enjoys what he has done is happy.

Every man bears something within him that, if it were publicly announced, would excite feelings of aversion.