美不是奢侈品，而是灵魂的必需品。

You are always a valuable, worthwhile human being — not because anybody says so, not because you're successful, not because you make a lot of money — but because you decide to believe it and for no other reason.

做一个良善的先人。做一些让未来世代感激你的事情。其中一件简单的事情就是去种一棵树。

可持续林业不是一种选择；它是一种义务。