When one makes a Revolution, one cannot mark time; one must always go forward--or go back

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.

Those who are opposed to armed uprising ... must be ruthlessly kicked out as enemies, traitors and cowards.

Medicine is the keystone of the arch of socialism.

Revolution can never be forecast; it cannot be foretold; it comes of itself. Revolution is brewing and is bound to flare up.

Sometimes quantity has a quality all its own.

When one makes a Revolution, one cannot mark time; one must always go forward - or go back. He who now talks about the 'freedom of the press' goes backward, and halts our headlong course towards Socialism.