In place of the old bourgeois society, with its classes and class antagonisms,
we shall have an association in which the free development of each is the condition for the free development of all.
- Karl Marx & Friedrich Engels
The Communist Manifesto
Revolution is necessary not only because the ruling class cannot be overthrown 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.
- Karl Marx & Friedrich Engels
For nearly 40 years we have raised to prominence the idea of the class struggle as the immediate driving force of history,
and particularly the class struggle between bourgeois and the proletariat as the great lever of the modern social revolution; ...
At the founding of the International, we expressly formulated the battle cry:
The emancipation of the working class must be the work of the working class itself.
- Karl Marx and Friedrich Engels
