May the devil take these peoples movements, especially when they are 'peaceful'.

It is not history which uses men as a means of achieving - as if it were an individual person - its own ends. History is nothing but the activity of men in pursuit of their ends.

Communism is the riddle of history solved, and it knows itself to be this solution.

Both for the production on a mass scale of this communist consciousness, and for the success of the cause itself, the alteration of men on a mass scale is necessary, an alteration which can only take place in a practical movement, a revolution; this revolution is necessary, therefore, not only because the ruling class cannot be overthrown in any other way, but also because the class overthrowing it can only in a revolution succeed in ridding itself of all the muck of ages and become fitted to found society anew.

Reason has always existed, but not always in a reasonable form.

The ruling ideas of each age have ever been the ideas of its ruling class.

The meaning of peace is the absence of opposition to socialism.