Henry Simons was one of the most influential “Chicago-school” economists, especially with respect to policy proposals. He was never a prolific writer and died prematurely, yet some believe his policy positions were more influential than any other member of the Chicago-school save Milton Friedman.
From Peter Boettke is this referral to a Henry Simons critique of Keynesian economics provided when Keynes published his “General Theory.”
Simons’s teacher Frank Knight argued in his presidential address that Keynes had successfully dragged economics back to the “dark ages” of economic thought. And he told his fellow economists that it was time that they grab the bull by the tail and stare the situation squarely in the face. In the review linked to above, Simons claims that Keynes relied on an army cranks and heretics to challenge orthodox economics.
HT: Cafe Hayek