Imperialism, in a sense, is the transition stage from capitalism to Socialism. . . . It is capitalism dying, not dead.

All contemporary religions and churches, all and every kind of religious organization, Marxism has always viewed as organs of bourgeois reaction, serving as a defense of exploitation and the doping of the working-classes.

Don't be afraid to admit defeat. Learn from defeat. Do over again more thoroughly, more carefully, and more systematically what you have done badly.

The leaders of the petty bourgeoisie must teach the people to trust the bourgeoisie. The proletarians must teach the people to distrust the bourgeoisie.

All official and liberal science defends wage-slavery, whereas Marxism has declared relentless war on that slavery.

A revolution is impossible without a revolutionary situation; furthermore, not every revolutionary situation leads to revolution.

It is necessary to be able to withstand all this, to agree to any and every sacrifice, and even - if need be - to resort to all sorts of stratagems, manoeuvres and illegal methods, to evasion and subterfuges in order to penetrate the trade unions, to remain in them, and to carry on Communist work in them at all costs.