« This is the punch line »
This is the actual passage from which that Marx quote is consistently taken out of context [emphasis mine]
In a higher phase of communist society, after the enslaving subordination of the individual to the division of labor, and therewith also the antithesis between mental and physical labor, has vanished; after labor has become not only a means of life but life’s prime want; after the productive forces have also increased with the all-around development of the individual, and all the springs of co-operative wealth flow more abundantly—only then can the narrow horizon of bourgeois right be crossed in its entirety and society inscribe on its banners: From each according to his ability, to each according to his needs!
Then there is this passage from Adam Smith’s “The Wealth of Nations,” you know, that Socialist tract.
It is not very unreasonable that the rich should contribute to the public expense, not only in proportion to their revenue, but something more than in that proportion.
And don’t forget those Commie Apostles…
Neither was there any among them that lacked: for as many as were possessors of lands or houses sold them, and brought the prices of the things that were sold, and laid them down at the apostles’ feet: and distribution was made unto every man according as he had need. (Acts 4:34-35)