The free development of each is the condition for the free development of all.

By the same right under which France took Flanders, Lorraine and Alsace, and will sooner or later take Belgium — by that same right Germany takes over Schleswig; it is the right of civilisation as against barbarism, of progress as against stability.

Three hundred years after its appearance Christianity was the recognized state religion in the Roman World Empire, and in barely sixty years socialism has won itself a position which makes its victory absolutely certain.

Firstly, the farmers, the most stupid set of people in existence, who, clinging to feudal prejudices, burst forth in masses, ready to die rather than cease to obey those whom they, their fathers and grandfathers, had called their masters; and submitted to be trampled on and horse-whipped by.

It is no longer a question anywhere of inventing interconnections from out of our brains, but of discovering them in the facts.

One day we shall certainly 'reduce' thought experimentally to molecular and chemical motions in the brain; but does that exhaust the essence of thought?

Political economy came into being as a natural result of the expansion of trade, and with its appearance elementary, unscientific huckstering was replaced by a developed system of licensed fraud, an entire science of enrichment.