最好的投资就是投资自己。
The best investment you can make is in yourself.
Development economics is ultimately about improving people's lives.
当你排除了不可能的情况，剩下的，不管多么不可能，都必须是真相。
I do not wish them [women] to have power over men; but over themselves.
在这个不断试图改变你的世界里，做你自己是最大的成就。
The elements of consciousness are to be determined by experimental analysis.
科学的进步是我们逐渐意识到自己无知的过程。