生产与保护之间的平衡很微妙，但可以实现。

Thinking is the hardest work there is, which is probably the reason why so few engage in it.

青春不是年华，而是心境；青春不是桃面、丹唇、柔膝，而是深沉的意志，恢宏的想象，炙热的恋情；青春是生命的深泉在涌流。

The transformation of the coal industry requires both determination and patience.

The greatest breakthroughs come from those who refuse to give up.

Love is about understanding, patience, and forgiveness.

If there's a book that you want to read, but it hasn't been written yet, then you must write it.

我们必须始终质疑我们的假设，并愿意根据新的证据修正我们的理解。