John Bates Clark

Brotherly feeling is a weak thing indeed if the condition of its existence is that men shall be equally well-​off. Communism does not develop the finer sort of brotherhood; but inequality may develop it if the moral fiber of the race shall grow strong.

John Bates Clark, “The Demos of the Future,” Independent (July 18, 1901), in The Annals of America (Encyclopedia Britannica, 1976), Vol. 12.