熱愛大自然的人內外感覺協調一致，即使進入成年後依然保持著童心。

The lover of nature is he whose inward and outward senses are still tr​​uly adjusted to each other; who has retained the spirit of infancy even into the era of manhood.
　
熱愛大自然的人內外感覺協調一致，即使進入成年後依然保持著童心。
-愛默生