我从不回头看，我只向前看。

做好准备。当你完成任何大型项目（房子、电影、活动、App）的90%时，其余无数的细节将需要第二个90%来完成。

True progress is measured not just in profits, but in the positive impact we have on people and the planet.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

Tragic art, as it developed in the theaters of ancient Greece, in the fifth century B.C., was essentially an art form devoted to tracing how people fail, and also according them a level of sympathy, which ordinary life would not necessarily accord them. A few years ago, I was thinking about this, and I went to "The Sunday Sport," a tabloid newspaper I don't recommend you start reading if you're not familiar with it already.

Life's too short to be sitting around miserable.