Friedrich Engels on Wage slavery

“The only difference as compared with the old, outspoken slavery is this, that the worker of today seems to be free because he is not sold once for all, but piecemeal by the day, the week, the year, and because no one owner sells him to another, but he is forced to sell himself in this way instead, being the slave of no particular person, but of the whole property-holding class.”

“The bourgeoisie ... lets him have the appearance of acting from a free choice, of making a contract with free, unconstrained consent, as a responsible agent who has attained his majority. Fine freedom, where the proletarian has no other choice than that of either accepting the conditions which the bourgeoisie offers him, or of starving, of freezing to death, of sleeping naked among the beasts of the forests!”