Investors, of course, can, by their own behavior make stock ownership highly risky. And many do. Active trading, attempts to "time" market movements, inadequate diversification, the payment of high and unnecessary fees to managers and advisors, and the use of borrowed money can destroy the decent returns that a life-long owner of equities would otherwise enjoy. Indeed, borrowed money has no place in the investor's tool kit.

Investors... can't pick stocks that are better than average. Stocks are a good thing to own over time. There's only two things you can do wrong: You can buy the wrong ones, and you can buy or sell them at the wrong time. And the truth is you never need to sell them.

We've had public companies in the past in that business and they bleed. We've got a lot more blood than they do.

If you are a professional and have confidence, then I would advocate lots of concentration.

We always see shifts in employment. If you think about it, if you go back to 1800, it took 80 percent of the labor force to produce enough food for the country. Now it takes less than 3 percent. Well, the truth is that market systems move people around.

Money will not change how healthy you are or how many people love you.

I never try to predict the market.