真相很少是纯粹的，也绝不简单。

The world is full of people who have never, since childhood, met an open doorway with an open heart.

伟大的事物需要时间。

Innovation in mining isn't optional—it's survival.

所以君子严于律己、宽以待人，而平庸的人却宽以待己、严于律人。 

光线渐暗，随之而来的是白天的温暖逐渐消失。