To the socialist no nation is free whose national existence is based upon the enslavement of another people, for to him colonial peoples, too, are peoples, and, as such, parts of the national state.

Passive fatalism can never be the role of a revolutionary party, like the Social Democracy.

Imperialism is not the creation of any one or any one group of states.

Like a cyclone, imperialism spins across the globe; militarism crushes peoples and sucks their blood like a vampire.

Capitalism is war; socialism is peace.

The failure of the Russian Socialist Republic will be the defeat of the proletariat of the whole world.

The new Germany has the unquestionable right to hold its tongue between its teeth.