当人伸手去摘星星时，常常会忘记脚下的花朵。

Success comes from persistence and hard work.

看不见的手之所以常常看不见，是因为它常常不存在。

质量从来不是偶然的；它始终是智慧努力的结果。

The loneliest moment in someone's life is when they are watching their whole world fall apart, and all they can do is stare blankly.

The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.