The strongest is never strong enough to be always the master, unless he transforms strength into right, and obedience into duty.
It is the weak man who urges compromise--never the strong man.
我们开采的资源必须与我们为社会创造的价值相匹配。
开玩笑是件严肃的事情。
Transparency builds trust - with employees, shareholders and the public.
Competition is a good thing, it forces you to keep improving.
Sustainability is not an option; it's a responsibility we owe to future generations.