Take away a nation's heritage and they are more easily persuaded.

There is only one effective antidote for mental suffering and that is physical pain.

Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win. Workingmen of all countries, unite!

A man cannot become a child again, or he becomes childish.

Labor in the white skin can never free itself as long as labor in the black skin is branded.

...the Communists everywhere support every revolutionary movement against the existing social and political order of things... They openly declare that their ends can be attained only by the forcible overthrow of all existing social conditions.

The ideas of the ruling class are in every epoch the ruling ideas, i.e., the class which is the ruling material force of society, is at the same time its ruling intellectual force.