That's the quote of the day, and it comes from Paul Krugman (here) in the New York Times.
Krugman was arguing that the stimulative effect of the Obama-Republican tax deal is unlikely to be sufficient to rescue the economy from its current malaise. The economy is not like a stalled car that just needs a "jump-start." Nor is it like an invalid who "just needs some rest." Rather, according to Krugman, our economic woes require long-term, "well-designed, sustained support." Whether or not you agree with Krugman about that, the quote is excellent.