"The product of mental labour – science – always stands far below its value, because the labour-time necessary to reproduce it has no relation at all to the labour-time required for its original produc…"

"The demand for a free press is essentially a demand for the freedom of public opinion."

"Let the ruling classes tremble at a Communistic revolution. The proletarians have nothing to lose but their chains. They have a world to win. Working men of all countries, unite!"

"The State is the form in which the individuals of a ruling class assert their common interests, and in which the whole civil society of an epoch is epitomized."

"The development of modern industry, therefore, cuts from under its feet the very foundation on which the bourgeoisie produces and appropriates products. What the bourgeoisie therefore produces, above …"