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 are no conditions in which we subordinate the interests of the class as a whole to the interests of any sect, any chapel, any separate organization.

Periodically, the workers do revolt against bourgeois society, not by a hundred, five hundred, or a thousand, but by the millions.

I do not believe in self-proclaimed parties.

Factions are a sign of illness in a party.

The only conclusion you can draw from the real historical movement is that by and large, in day-to-day life, what Lenin called trade union consciousness dominates the working class. I would call it elementary class consciousness of the working class.

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