Never be arrogant or abrasive. Treat your opponent respectfully if they really and truly believe they are right.

I still think we are smart enough to not destroy planet Earth, our only home.

Lasting change is a series of compromises.

I believe that accurate knowledge is very, very important, but find that out in free time. Don't let it take over every hour of the day. Perhaps most important, talk about it.

One individual cannot possible make a difference, alone. It is individual efforts, collectively, that makes a noticeable difference - all the difference in the world!

A book came out recently written by scientists and environmentalists that made me so angry. It said the only thing we have to worry about is big industry. Each individual who tries to make his or her own environment better is useless. I find this criminal, because then you have a billion people all saying, It doesn't matter what I do because I'm just one person. But if you turn that around and a billion people say, What I do does make a difference, then it will make a difference.

Lasting change is a series of compromises. And compromise is all right, as long your values don't change.