Do every duty, and expect no reward for it.

Literature should be judged as literature, not as a social document.

森林不需要我们，但我们需要森林——这一真理应指导我们在林业中的每一个决策。

We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.

The only limit to our realization of tomorrow is our doubts of today.

Reality is not what we see, but what we discover through art.

有机体不仅学会做什么，还学会什么导致什么。