Advances in science help to delegitimize the rule of kings and the power of the Church.
For the bureaucrat, the world is a mere object to be manipulated by him.
Revolutions are the locomotives of history.
Philosophy stands in the same relation to the study of the actual world as masturbation to sexual love.
Accumulate, accumulate! This is Moses and the Prophets!
When the labourer co-operates systematically with others, he strips off the fetters of his individuality, and develops the capabilities of his species.