Quality is never an accident; it is always the result of intelligent effort.

I'm very shy, believe it or not. I'm very different from the person you see on stage.

用智慧的眼光看待世界。

如果我们明智地使用技术，它可以成为林业最伟大的盟友。

Simple living, high thinking: this is the path to real happiness.

读书人应当以天下大事为自己的责任，不能仅仅做一个只会钻研书本的学者。