If you want something you’ve never had, you must be willing to do something you’ve never done.

安全是石油行业的生命线，任何时候都不能放松。

天下的治乱不在于一个王朝的兴亡，而在于百姓的忧乐

我感恩每一刻。

The concept of law is essentially a matter of social fact.