There has been hardly a single year since 1917, and in a certain sense since 1905, without a revolution somewhere in the world in which the workers participated in a rather important way.

You can have relatively high levels of class consciousness with a lower level of class militancy than one would have expected.

Revolution is an instrument, like a party is an instrument.

Precisely because Marx was convinced that the cause of the proletariat was of decisive importance for the whole future of mankind, he wanted to create for that cause not a flimsy platform of rhetorical invective or wishful thinking, but the rock-like foundation of scientific truth.

The more workers you have in your organization, the better you are implanted in the working class, the more likely you are to come up with the concrete problems of the class.

There has been hardly a single year since 1917, and in a certain sense since 1905, without a revolution somewhere in the world in which the workers participated in a rather important way.

For Marx, 'pure' economic theory, that is economic theory which abstracts from a specific social structure, is impossible.