An investor should act as though he had a lifetime decision card with just twenty punches on it.

I’ve worked in an economy that rewards someone who saves the lives of others on a battlefield with a medal, rewards a great teacher with thank-you notes from parents, but rewards those who can detect the mispricing of securities with sums reaching into the billions.

The financial calculus that Charlie and I employ would never permit our trading a good night's sleep for a shot at a few extra percentage points of return. I've never believed in risking what my friends and family have and need in order to pursue what they don't have and don't need.

The problem with commodities is that you are betting on what someone else would pay for them in six months. The commodity itself isn't going to do anything for you....it is an entirely different game to buy a lump of something and hope that somebody else pays you more for that lump two years from now than it is to buy something that you expect to produce income for you over time.

If you can't read the scoreboard. You don't know the score. If you don't know the score, you can't tell the winners from the losers.

Success in investing doesn’t correlate with I.Q. Once you are above the level of 25; once you have ordinary intelligence, what you need is the temperament to control the urges that get other people into trouble in investing.

Read Ben Graham and Phil Fisher read annual reports, but don't do equations with Greek letters in them.