现在如果送给别人很少的东西，却希望人家回报很多的东西，那么，人们就会怕你再送东西给自己了。 

奥吉改变不了他的容貌，但我们能改变我们看他的眼光

The ocean's abundance is not infinite; we must farm its resources with wisdom and restraint.

The value of an economic model lies in its ability to explain and predict.

煤炭的真正价值在于我们如何负责任地开采和使用它。

To lead in this industry, you must respect both the land and the people who work it.

任何变化，即使是变得更好，总是伴随着缺点和不适。

The theory of reductive groups is the backbone of the Langlands program.