A nation that enslaves another forges its own chains.
The ruling ideas of each age have ever been the ideas of its ruling class.
Nothing can have value without being an object of utility.
I am a machine, condemned to devour them and then, throw them, in a changed form, on the dunghill of history.
Scientific truth is always paradox, if judged by everyday experience, which catches only the delusive appearance of things.
When commercial capital occupies a position of unquestioned ascendancy, it everywhere constitutes a system of plunder.