And my advice for college graduates is don't reflexively give money to your alma mater, something particular to Americans that I find extraordinary. Take Princeton, for example - it has more money on a per capita basis than any educational institution in the history of educational institutions. There is no scenario where it can spend all the money its endowment generates every year. If there is anyone who gives a single dollar to Princeton, they have completely lost their mind. I will say that without reservation.

The great accomplishment of Jobs's life is how effectively he put his idiosyncrasies - his petulance, his narcissism, and his rudeness - in the service of perfection.

Innovation-the heart of the knowledge economy-is fundamentally social.

As human beings, we always expect everyday change to happen slowly and steadily, and for there to be some relationship between cause and effect.

Basketball is an intricate, high-speed game filled with split-second, spontaneous decisions. But that spontaneity is possible only when everyone first engages in hours of highly repetitive and structured practice--perfecting their shooting, dribbling, and passing and running plays over and over again--and agrees to play a carefully defined role on the court. This is the critical lesson of improve, too, and it is also a key to understanding a puzzle of Millennium Challenge: spontaneity isn't random.

The biggest mistake we make is trying to square the way we feel about something today with the way we felt about it yesterday. You shouldn’t even bother doing it. You should just figure out the way you feel today and if it happens to comply with what you thought before, fine. If it contradicts it, whatever. Life goes on.

We sometimes think of being good at mathematics as an innate ability. You either have "it" or you don't. But to Schoenfeld, it's not so much ability as attitude. You master mathematics if you are willing to try.