Who said

this:

That’s a hard answer to accept, especially for those American policy intellectuals who recoil from the dreary task of reducing deficits and raising the national savings rate. But economics is not a dismal science because the economists like it that way; it is because in the end we must submit to the tyranny not just of the numbers, but of the logic they express.

http://www.cashewman.com/2010/05/the-tyranny-of-the-numbers/