勤勉：不要浪费时间，只做有用的事情，戒除一切不必要的行为。

忙碌的人没有时间流泪

The best way to debug a program is to make it work.

The world is a stage, but the play is badly cast.

在能源问题上，我们必须超越自己的生命周期去思考。

Every book is a door to a new world, a new perspective, a new understanding of life and existence.

Materials themselves are not important; what matters is how you use them.

煤炭的未来在于可持续和负责任的采矿实践。

I believe in second chances because God gave me one.