There have been in this century only one great man and one great thing: Napoleon and liberty. For want of the great man, let us have the great thing.

The three great problems of this century; the degradation of man in the proletariat, the subjection of women through hunger, the atrophy of the child by darkness.

The soul does not give itself up to despair until it has exhausted all illusions.

It may be remarked in passing that success is an ugly thing. Men are deceived by its false resemblences to merit.

Let us fear ourselves. Prejudices are the real robbers; vices are the real murderers. The great dangers lie within ourselves.

Philosophy should be an energy; it should find its aim and its effect in the amelioration of mankind.

It is ourselves we have to fear. Prejudice is the real robber, and vice the real murderer.