最大的回报不是经济收益，而是能够以积极的方式影响人们的生活。

我们都是森林的生物，而森林也是我们的生物。

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

生存等于愤怒乘以想象力。