唯一真正的知识是自知之明。
The only real knowledge is self-knowledge.
The past is not a shadow but a living presence.
What good's an opinion if you can't change it?
Resource development must balance economic growth with environmental stewardship.
To understand the cosmos is to understand ourselves, for we are made of the same stardust that forms the stars.
我们行业最有价值的资源不在地下，而是让一切成为可能的人们。
你不能戴着丝绒手套搞革命。
We don't try to predict the future; we just try to buy things that are cheap.
Leadership is about inspiring others to believe in something bigger than themselves.