Authority poisons everybody who takes authority on himself.

Bah, tombstones are only good for pigeons to sit on

All extremes are bad. All that is good and useful, if carried to extremes, may become-and beyond a certain limit is bound to become-bad and injurious.

You must act with all energy. Mass searches. Execution for concealing arms.

The whole struggle of our Party (and of the working class movement in Europe generally) must be directed against opportunism. The latter is not a current of opinion, not a tendency; it (opportunism) has now become the organised tool of the bourgeoisie within the working class movement.

In the last analysis, productivity of labour is the most important, the principal thing for the victory of the new social system.

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