Question: who said the proletarians have nothing to lose but their chains
Answer: The political slogan Workers of the world , unite ! is one of the most famous rallying cries from the Communist Manifesto ( 1848 ) , by Karl Marx and Friedrich Engels ( German : Proletarier aller Länder vereinigt Euch ! , literally `` Proletarians of all countries , unite ! '' but soon popularized in English as `` Workers of the world , unite ! You have nothing to lose but your chains ! '' ) A variation of this phrase ( `` Workers of all lands , unite '' ) is also inscribed on Marx 's tombstone .