| When the last tree is cut and the last fish killed, the last river poisoned, then you will see that you can't eat money. |
| If civilization is to survive, it must live on the interest, not the capital, of nature. |
| There is nothing in which the birds differ more from man than the way in which they can build and yet leave a landscape as it was before. |
| When we heal the earth, we heal ourselves. |
| Suburbia is where the developer bulldozes out the trees, then names the streets after them. |
| We never know the worth of water till the well is dry. |
| Because we don't think about future generations, they will never forget us. |
| Don't blow it - good planets are hard to find. |
| Modern technology owes ecology an apology. |
