But democracy is by no means a limit one may not overstep; it is only one of the stages in the course of development from feudalism to capitalism, and from capitalism to Communism.
Vladimir LeninYou have read and heard that communist theory-the science of communism created in the main by Marx, this doctrine of Marxism-has ceased to be the work of a single socialist of the nineteenth century, even though he was a genius, and that it has become the doctrine of millions and tens of millions of proletarians all over the world, who are applying it in their struggle against capitalism.
Vladimir Lenin