For 200 years we've been conquering Nature. Now we're beating it to death. — Tom McMillan
我们花了200年时间来征服自然，而如今又开始把它往死里推。

I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in. — John Muir
我本来只是出去走走，结果决定待到天黑再回去，因为我发现，出走竟是返我。

Take nothing but pictures. Leave nothing but footprints. Kill nothing but time. — Motto of the Baltimore Grotto, a caving society
不带走一草一物，除了照片；不留下些许痕迹，除了脚印；不猎杀任何生物，除了时间。

Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect. — Chief Seattle
人类并未织起生命的网络。我们不过是其中的一根线，无论我们对这网做了什么，我们都等于是对自己做了。所有事情绑在一块，所有事情紧密相连。

Never does nature say one thing and wisdom another. — Juvenal, Satires
自然与智慧永不相悖。

There is a pleasure in the pathless woods. There is a rapture on the lonely shore. There is society, where none intrudes. By the deep sea, and music in its roar; I love not man the less, but Nature more. — George Gordon, Lord Byron
无径之林，常有情趣；无人之岸，几多惊喜；世外桃源，何处寻觅；聆听涛乐，须在海里。爱我爱你，更爱自然。

Only when the last tree has died and the last river been poisoned and the last fish been caught will we realise we cannot eat money. — Cree Indian Proverb
只有当最后一棵树死去，最后一条河被污染， 最后一条鱼被捉住，我们才会意识到——钱不能用来填饱肚子。