The past is a shadow that follows us, but it doesn't have to define us.
过去是一个跟随我们的影子,但它不必定义我们。
林业的未来在于平衡经济需求与生态责任。
The best performance improvement is the transition from the non-working state to the working state.
旅程最好用朋友来衡量,而不是用英里。
——2008年2月19日在斯坦福大学演讲
"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."