Belief in truth begins with doubting all that has hitherto been believed to be true.

It is far pleasanter to injure and afterwards beg forgiveness than to be injured and grant forgiveness. He who does the former gives evidence of power and afterwards of kindness of character.

One does not know - cannot know - the best that is in one.

The belief in authority is the source of conscience; which is therefore not the voice of God in the heart of man, but the voice of some men in man.

The desire to annoy no one, to harm no one, can equally well be the sign of a just as of an anxious disposition.

All I need is a sheet of paper and something to write with, and then I can turn the world upside down.

The idealist is incorrigible: if he is thrown out of his heaven he makes an ideal of his hell.