One of the first big bubbles, of course, was the huge and horrible South Sea Bubble in England. And the aftermath was interesting. Many of you probably don't remember what happened after the South Sea Bubble, which caused an enormous financial contraction, and a lot of pain. They banned publicly traded stock in England for decades.

Berkshire's past record has been almost ridiculous. If Berkshirehad used even half the leverage of, say, Rupert Murdoch, it would be five times its current size.

If you, like me, lived through 1973-74 or even the early 1990s... There was a waiting list to get OUT of the country club - that's when you know things are tough. If you live long enough, you'll see it.

It's very useful to have a good grasp of all the big ideas in hard and soft science. A, it gives perspective. B, it gives a way for you to organize and file away experience in your head, so to speak.

To atone, I teach and try to set an example... I love spreading this stuff around. Just because it's trite doesn't mean it isn't right. In fact, I like to say, 'If it's trite, it's right.'

I bet Richard Fuld doesn't have an ounce of contrition. It's just megalomania. When it's like that, you need rules to prevent catastrophe. When banks are borrowing the government's credit rating, you need rules to prevent stupid things.

A lot of success in life and business comes from knowing what you want to avoid: early death, a bad marriage, etc.