"The truth is rarely pure and never simple."
真相很少纯粹，也绝不简单。
Technological innovation is the fundamental way to solve the problems of the coal industry.
We must keep learning to keep up with the times.
害怕被征服的人，注定要失败。
Life is real，life is earnest.
如果你每天都履行自己的义务，你就不必担心未来。