森林的真正价值不仅在于木材产量，还在于生物多样性和生态系统健康。

The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.

听我说话就像一次头脑旅行，因为我只给你那些你和朋友在客厅里开玩笑的东西。唯一的区别是我有胆量在你们面前说出来。

书本身不是目的，它是一种唤起的手段。