Morality begins at the point of a gun.

The state machine, including the army, the police and the courts, is the instrument with which one class oppresses another. It is an instrument of oppression against all hostile classes; it means violence and is certainly not anything 'benevolent.' 'You are merciless.' Quite so. We definitely do not adopt a benevolent policy towards the reactionary activities of the reactionaries and the reactionary classes.

Deaths have benefits. They can fertilise the ground.

The weeds of socialism are better than the crops of capitalism.

Learn to swim. It is a sport all the peasants can play.

At certain times in the revolutionary struggle, the difficulties outweigh the favorable conditions and so constitute the principal aspect of the contradiction and the favorable conditions constitute the secondary aspect. But through their efforts the revolutionaries can overcome the difficulties step by step and open up a favorable new situation, thus a difficult situation yields place to a favorable one.

Communism has nothing to do with love. Communism is an excellent hammer which we use to destroy our enemy.