Nature never deceives us； it is always we who deceive ourselves.

The world is full of people who will tell you what you can't do. What you must do is find the ones who will tell you what you can.

宽容是最好的宗教。

Science is a wonderful thing if one does not have to earn one's living at it.

他撕碎了我的心，而你不过撕碎了我的生活。

教育是在林业实践中创造有意义变革的基础。