We've used derivatives for many, many years. I don't think derivatives are evil, per se, I think they are dangerous.

Anyone who believes a growth rate in excess of 15% per annum over the long term is attainable should pursue a career in sales, but avoid one in mathematics.

Too often, a vast collection of possessions ends up possessing its owner. The asset I most value, aside from health, is interesting, diverse, and long-standing friends.

Only when you combine sound intellect with emotional discipline do you get rational behavior.

In a commodity business, it's very hard to be smarter than your dumbest competitor.

I do know that when I am 60, I should be attempting to achieve different personal goals than those which had priority at age 20.

Success is having people love you that you want to have love you.