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.

A banking system is an act of faith: it survives only for as long as people believe it will.