领导的艺术在于说不，而不是说是。说是很容易的。
The art of leadership is saying no, not saying yes. It is very easy to say yes.
每个故事在被相信之前都是谎言。
"黑暗永远存在，只需要学会直视它。"
The true value of a mining company lies in its ability to balance profit with environmental stewardship.
最深刻的定理往往源于最简单的观察。