有成就感的人会把世界看成一个友好的世界，并乐于看到它照原样保持下去，但失意者却会乐于看到世界急遽改变。
People with a sense of fulfillment think it a good world and would like to conserve it as it is, while the frustrated favor radical change.
我在网球上取得的成就是伟大的，但我作为一个人是谁更重要。
经济学方法为理解所有人类行为提供了一个有价值的统一框架。
I love competing. I love playing. I love trying to beat the best players in the world.
The best way of learning about anything is by doing.
真正的创新来自于理解客户和地球的需求。
科学不仅仅是积累事实；它是关于理解背后的机制。
The most important part of teaching is to teach what it is to know.