The ruling ideas of each age have ever been the ideas of its ruling class.

Philosophy is to science as masturbation is to sex.

Under no pretext should arms and ammunition be surrendered; any attempt to disarm the workers must be frustrated, by force if necessary.

Do not be deluded by the abstract word Freedom. Whose freedom? Not the freedom of one individual in relation to another, but freedom of Capital to crush the worker.

The English have all the material requisites for the revolution. What they lack is the spirit of generalization and revolutionary ardour.

All I know is that I am not a Marxist.

Necessity is blind until it becomes conscious. Freedom is the consciousness of necessity.