我们今天种植的每一棵树都是对明天清洁空气、稳定气候和繁荣生态系统的投资。

行为的科学研究必须基于客观、可测量的数据。

The true value of a human being is determined primarily by the measure and the sense in which he has attained liberation from the self.

每个故事都有开始、中间和结尾，但不一定是这个顺序。