An overly optimistic view would lead us to believe that we are on the verge of revolution, and would allow us to avoid the question of our own intervention. But one cannot assume that communism is not active in cases where it does not act positively. What radical workers do not do is just as important as what they do. Nothing efficient can be done without a clear communist perspective. The closest scrutiny of wildcat strikes or of profit rates does not lead us to understand where we are going.
Revolutionaries are able to understand and criticise each other.
Communication is vital. Those who are only interested in theory, as well as those who are only interested in organising others' activity, stand outside the communist movement. Marx, Theories of Surplus-Value, Vol. Reviewed in Internationalism , No. 2.