[2] once wrote,

While [1]’s theoretical work is universally admired by professional economists, there’s much more ambivalence about his policy pronouncements and especially his popularizing. And it must be said that there were some serious questions about his intellectual honesty when he was speaking to the mass public.

Guess who is [1] and who is [2]? Your choices are Milton Friedman or Paul Krugman. No fair peeking before you click on the answer.