Friedrich Engels Quote
The first act by virtue of which the State really constitutes itself the representative of the whole of society—the taking possession of the means of production in the name of society—this is, at the same time, its last independent act as a State. State interference in social relations becomes, in one domain after another, superfluous, and then dies out of itself; the government of persons is replaced by the administration of things, and by the conduct of processes of production. The State is not abolished. It dies out.
Socialism, Utopian and Scientific (1901)