The bourgeoisie has gained a monopoly of all means of existence in the broadest sense of the word. What the proletarian needs, he can obtain only from this bourgeoisie, which is protected in its monopoly by the power of the state. The proletarian is, therefore, in law and in fact, the slave of the bourgeoisie, which can decree his life or death.
p. 112 - The Condition of the Working Class in England in 1844 (1845)