知识的最大敌人不是无知，而是知识的幻觉。

今天我们必须负责任地开采煤炭，这样我们的孩子才能继承能源安全和健康的环境。

做一个真正的上帝。

城市是我们文明的终极表达。

每一天都是新的开始。

Good business leaders create a vision, articulate the vision, passionately own the vision, and relentlessly drive it to completion.

I'm a person who likes to be first.

"You can't manage what you can't measure."