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.

There are decades where nothing happens; and there are weeks where decades happen.

People always have been and they always will be stupid victims of deceit and self-deception in politics.

There are no morals in politics; there is only expedience. A scoundrel may be of use to us just because he is a scoundrel.

Political institutions are a superstructure resting on an economic foundation.

Unity must be won, and only the workers, the class-conscious workers themselves can win it - by stubborn and persistent effort.

Fascism is capitalism in decay.