That's what happens when you're thirty-seven years old: you do the things you always did but the result is somehow different.

People in both fields operate with beliefs and biases. To the extent you can eliminate both and replace them with data, you gain a clear advantage.

Commitment, by its nature, frees us from ourselves and, while it stands us in opposition to some, it joins us with others similarly committed. Commitment moves us from the mirror trap of the self absorbed with the self to the freedom of a community of shared values.

Above all, recognize that if you have had success, you have also had luck — and with luck comes obligation. You owe a debt, and not just to your Gods. You owe a debt to the unlucky.

The men on the trading floor may not have been to school, but they have Ph.D.’s in man’s ignorance.

That was how a Salomon bond trader thought: He forgot whatever it was that he wanted to do for a minute and put his finger on the pulse of the market. If the market felt fidgety, if people were scared or desperate, he herded them like sheep into a corner, then made them pay for their uncertainty. He sat on the market until it puked gold coins. Then he worried about what he wanted to do.