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

All you need for a lifetime of successful investing is a few big winners, and the pluses from those will overwhelm the minuses from the stocks that don't work out.

You shouldn't just pick a stock - you should do your homework.

Never buy anything that you can't illustrate on the back of a napkin.

When management owns stock, then rewarding the shareholders becomes a first priority, whereas when management simply collects a paycheck, then increasing salaries becomes a first priority.

Time is on your side when you own shares of superior companies.

In business, competition is never as healthy as total domination.