The tenacity of the Yankees, who are even rehashing the Greenback humbug, is a result of their theoretical backwardness and their Anglo-Saxon contempt for all theory. They are punished for this by a superstitious belief in every philosophical and economic absurdity, by religious sectarianism, and by idiotic economic experiments, out of which, however, certain bourgeois cliques profit.

 — Engels, 1892

(H/T to Doug Henwood)