可持续性不是成本，而是对我们未来的投资。

文化生态学的概念本质上是一种方法论工具，用于理解人类社会如何适应其环境。

Our younger generation are going to transform this country while at the same time being transformed themselves.

Freedom would be not to choose between black and white but to abjure such prescribed choices.

我们不是从祖先那里继承了地球；我们是从子孙那里借来的。这个真理指导着我们做出的每一个决定。