最重要的是能够像经济学家一样思考，透过这个视角看世界。

我觉得布什总统根本没有为艾滋病做任何事。事实上，我都不能确定他会不会拼艾滋这个单词。

To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.

Just pursue your own natural curiosity and solve your own problems. Learning is a byproduct of all of that.

Innovation is at the heart of what we do. It's how we meet the world's growing energy needs while addressing environmental challenges.

一个人的心是只服从他自己的，你想束缚它，结果却释放了它；如果让它自由自在的话，你反而把它束缚得紧紧的了。