There is only one effective antidote for mental suffering and that is physical pain.

There is no royal road to science, and only those who do not dread the fatiguing climb of its steep paths have a chance of gaining its luminous summits. (Preface to the French edition).

Money plays the largest part in determining the course of history.

An object of art creates a public capable of finding pleasure in its beauty. Production, therefore, not only produces an object for the subject, but also a subject for the object.

I am a machine, condemned to devour them and then, throw them, in a changed form, on the dunghill of history.

All our inventions have endowed material forces with intellectual life, and degraded human life into a material force.

If you can cut the people off from their history, then they can be easily persuaded.