The history of all previous societies has been the history of class struggles.

All social rules and all relations between individuals are eroded by a cash economy, avarice drags Pluto himself out of the bowels of the earth.

If we have chosen the position in life in which we can most of all work for mankind, no burdens can bow us down, because they are sacrifices for the benefit of all; then we shall experience no petty, limited, selfish joy, but our happiness will belong to millions, our deeds will live on quietly but perpetually at work, and over our ashes will be shed the hot tears of noble people.

Men can see nothing around them that is not their own image; everything speaks to them of themselves. Their very landscape is alive.

Religion is the opiate of the people.

Society is a sort of organism on the growth of which conscious efforts can exercise little effect.

Landlords, like all other men, love to reap where they never sowed.