Investing in stocks is an art, not a science, and people who've been trained to rigidly quantify everything have a big disadvantage.

That's not to say there's no such thing as an overvalued market, but there's no point worrying about it.

The person that turns over the most rocks wins the game. And that's always been my philosophy.

Everyone has the brainpower to follow the stock market. If you made it through fifth-grade math, you can do it.

When even the analysts are bored, it's time to start buying.

When people discover they are no good at baseball or hockey, they put away their bats and their skates and they take up amateur golf or stamp collecting or gardening. But when people discover they are no good at picking stocks, they are likely to continue to do it anyway.

The S&P is up 343.8 percent for 10 years. That is a four-bagger. The general equity funds are up 283 percent. So it's getting worse, the deterioration by professionals is getting worse. The public would be better off in an index fund.