你必须熬过一些糟糕的日子，才能赢得生命中最美好的时光。

If you want to be a great leader, you have to be a great listener.

True progress comes when industry and environmentalists work together, not against each other.

解决数学问题的喜悦是无与伦比的；这是纯粹的智力胜利的时刻。