If you really think that houses prices are going to go up next year and the year after, you feel if I don't buy it this year, I'm going to have to buy it next year. [...] And when somebody makes it very easy for you to do it by saying you don't really have to put up my money, you can lie about your income a little, or we'll give you 100 percent mortgage, you're going to do it, because everybody that's done it has been proven right. You have what they call social tools, and, you know, you're going to feel like an idiot if you didn't do it, because the house cost more.

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.

The U.S. Treasury has got borrowing costs like nobody else has. They can borrow basically unlimited amounts. They can stay there for years and years. These assets will be worth more money over time.

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.

When people talk about cash being king, it's not king if it just sits there and never does anything. There are times when cash buys more than other times, and this is one of the other times when it buys a fair amount more, so we use it.

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.

The ingredients that made this country, you know, the miracle of the world - I mean we had a seven for one improvement in the average American standard of living in the 20th century.