The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.

We must balance economic growth with environmental responsibility.

在科学中最令人兴奋的短语，预示着新发现的，不是“我找到了！”而是“这有点奇怪……”

过去是一个陌生的国度；那里的人做事方式不同。

Choose a life of action，not one of ostentation.