In mining, efficiency and environmental care must go hand in hand.

一个组织的价值观质量决定了其决策的质量。

I've learned that you can't have everything and do everything at the same time.

真相很少纯粹，也绝不简单。

领导力是一条双向街道，向上忠诚和向下忠诚。尊重上级；关心下属。