政府的目的是人类的利益。
The end of government is the good of mankind.
真正的领导力是为他人服务，而不是为自己。
每一吨开采的煤炭都应承载我们对未来的承诺
The most dangerous thing is to do nothing.
I think that the thing that makes mathematics worthwhile is the fact that it has this incredible structure that you can explore and discover.
我认为年龄是为成熟付出的高昂代价。