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

There is a process of social and of political differentiation going on in the real working class all the time.

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.

Factions are a sign of illness in a party.

You need a vanguard organization in order to overcome the dangerous potential brought about by the uneven development of class militancy and class consciousness.

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

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