About Jesus we must believe no one but himself.

It is dangerous to abandon one's self to the luxury of grief; it deprives one of courage, and even of the wish for recovery.

To know where one is going and what one wishes - this is order ... to organize one's life to distribute one's time ... all this belong to and is included in the word order.

Doing easily what others find difficult is talent; doing what is impossible for talent is genius.

Self-interest is an inexhaustible source of convenient illusions. The number of beings who wish to see truly is extraordinarily small.

Men of genius supply the substance of history, while the mass of men are but the critical filter, the limiting, slackening, passive force needed for the modification of ideas supplied by genius.

Cleverness is serviceable for everything, sufficient for nothing.