"Writing is an act of courage—you have to be willing to expose your deepest thoughts."
The mind is an instrument of survival before it is an instrument of thought.
The wild is a place of beauty. To survive, you have to appreciate it.
Leadership means making tough decisions today that will benefit everyone tomorrow.
生活的意义不在于答案，而在于提问。
我们生产的每一桶石油都应着眼于最小化我们的足迹。