Investing is simple, but not easy.

If you own a wonderful business...the best thing to do is keep it. All you're going to do is trade your wonderful business for a whole bunch of cash, which isn't as good as the business, and you got the problem of investing in other businesses, and you probably paid a tax in between. So my advice to anybody who owns a wonderful business is keep it.

That's the reality of what they're going to sell them to the Treasury for.

Part of making good decisions in business is recognizing the poor decisions you've made and why they were poor. I've made lots of mistakes. I'm going to make more. It's the name of the game. You don't want to expect perfection in yourself. You want to strive to do your best. It's too demanding to expect perfection in yourself.

I look for businesses in which I think I can predict what they're going to look like in ten to fifteen years time. Take Wrigley's chewing gum. I don't think the internet is going to change how people chew gum.

We need a tax system that essentially takes very good care of the people who just really aren't as well adapted to the market system but are nevertheless doing useful things in the society.

By periodically investing in an index fund, the know-nothing investors can actually outperform most investment professionals.