We economists love to quote Keynes's final lines in his 1936 General Theory --- for the reason that they cater so well to our vanity and self-importance. But to admit the truth, madmen in authority can self-generate their own frenzies without needing help from either defunct or avant garde economists. What establishment economists brew up is as often what the Prince and the Public are already wanting to imbibe. We guys don't stay in the best club by proffering the views of some past academic crank or academic sage.

Paul Anthony Samuelson (2006)