Every ton of coal we extract carries equal weight in responsibility.

We don't just mine coal, we power the nation.

Life is too short to waste time on things that don't make your soul happy.

唯一真正的监狱是恐惧，唯一真正的自由是从恐惧中解脱。

"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."

我们处在一个信息越来越多，意义却越来越少的世界。