Any time I can be of help to the government in terms of giving advice -I've given a little advice, actually.

We have a terrific economy, it's like a great athlete that's had a cardiac arrest.

You can go back to tulip bulbs in Holland 400 years ago. The human beings going through combinations of fear and greed and all of that sort of thing, their behavior can lead to bubbles. And it may have had and Internet bubble at one time, you've had a farm bubble, farmland bubble in the Midwest which resulted in all kinds of tragedy in the early '80s.

I mean people -- people don't get -- they don't get smarter about things that get as basic as greed and you can't stand to see your neighbor getting rich. You know you're smarter than he is, and he's doing these things, you know, and he's getting rich, and your spouse is getting unhappy with you because you aren't doing -- pretty soon you start doing it. And so you get what I call the natural progression, the three Is. The innovators, the imitators, and the idiots.

If you owe money, you can't pay them out. You just pay for everything, you do smart things, you eventually get very rich. If you do smart things and use leverage and do one wrong thing along the way, it could wipe you out, because anything times zero is zero. But it's reinforcing when the people around you are doing it successfully, you're doing it successfully, and it's a lot like Cinderella at the ball. [...] And everybody thinks they're going to leave at two minutes to 12.

People love leverage when it's working. I mean, it's so easy to borrow money from a guy at X and put it out at X.

We had the great depression, we had two world wars, we had the flu epidemic. We had oil shock. We had all these terrible things happen. But something about the American system unleashed more and of a potential to human beings over that hundred years so that we had a seven for one improvement in - there's never been any - I mean, you have centuries where if you've got a 1 percent improvement, then it's something. So we've got a great system. And we've got more productive capacity now than we ever have.