如果有人笨到要花100万美元为我拍张照片，我当然不会笨到拒绝他。

Sustainability isn't just an option; it's our responsibility to future generations.

You can only find out what you actually believe (rather than what you think you believe) by watching how you act. You simply don’t know what you believe, before that. You are too complex to understand yourself.

If you don't fail at least 90 percent of the time, you're not aiming high enough.

最好的林业实践是那些不留痕迹但改变一切的做法。