It's certainly hard to imagine deficits like we've [the USA] been running, or like other countries have been running, being consistent with low interest rates over time. If you could really run deficits of 10% of GDP and not have anything bad happen, people would've figured that out a long time ago, because it's too much fun to do. There will be a price to be paid for the medicine we used to break out of our panic situation.
Who wants to lend money to someone who has a long-term policy of running deficits at 10%? It's unsustainable over time.
~Warren Buffett, Goldman Sachs investor, "The Buffett Express", CNBC's Squawk Box, May 3rd, 2010