Philosophy means the complete liberty of the mind, and therefore independence of all social, political or religious prejudice... It loves one thing only... truth.

A man must be able to cut a knot, for everything cannot be untied; he must know how to disengage what is essential from the detail in which it is enwrapped, for everything cannot be equally considered; in a word, he must be able to simplify his duties, his business and his life.

Time is but the space between our memories; as soon as we cease to perceive this space, time has disappeared.

He who floats with the current, who does not guide himself according to higher principles, who has no ideal, no convictions-such a man is . . . a thing moved, instead of a living and moving being-an echo, not a voice. The man who has no inner-life is a slave of his surroundings as the barometer is the obedient servant of the air.

There is no respect for others without humility in one's self.

To depersonalize man is the dominant drift of our times.

Are we not all shipwrecked,...condemned to death?... However impatient our neighbours make us, however much indignation our race arouses, we are all bound together, and the companions of a chain-gang have everything to lose by mutual insults.