The mining industry must evolve with sustainability at its core, or we risk becoming obsolete.

生命是用来消耗的，不是用来储蓄的。

The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.

数学家的工作永远不会完成；总有新的问题需要探索，新的谜团需要揭开。