All the effects of nature are only the mathematical consequences of a small number of immutable laws.

The main task in life is simply this: to identify and separate matters so that I can say clearly to myself which are externals not under my control, and which have to do with the choices I actually control.

El éxito no se mide por la fama o el dinero, sino por la felicidad que encuentras en lo que haces.

Innovation distinguishes between a leader and a follower.

Development economics is ultimately about improving people's lives.

I'm the worst thing since Elvis Presley, to do Black music so selfishly.

数学是人类精神最美丽和最强大的创造。