I sort of kept my hand in writing and went to work for the Sierra Club in '52, walked the plank there in '69, founded Friends of the Earth and the League of Conservation Voters after that.

The more we pour the big machines, the fuel, the pesticides, the herbicides, the fertilizer and chemicals into farming, the more we knock out the mechanism that made it all work in the first place.

All technology should be assumed guilty until proven innocent

Overpopulation is perhaps the biggest problem facing us, and immigration is part of that problem. It has to be addressed.

Truth and beauty can still win battles. We need more art, more passion, more wit in defense of the Earth.

Sometimes luck is with you, and sometimes not, but the important thing is to take the dare. Those who climb mountains or raft rivers understand this.

Understanding how DNA transmits all it knows about cancer, physics, dreaming and love will keep man searching for some time.

We are no longer inheriting the Earth from our parents, we are stealing it from our children.

Without wilderness, the world's a cage.

Apollo 13, as you may remember, gave us a reactor that is bubbling away right now somewhere in the Pacific. It's supposed to be bubbling away on the moon, but it's in the Pacific Ocean instead.

Bring diversity back to agriculture. That's what made it work in the first place.

Keep the window of the mind open to let the fresh thoughts come in like fresh air.

I let him run on, this papier-maché Mephistopheles, and it seemed to me that if I tried I could poke my forefinger through him, and would find nothing inside but a little loose dirt, maybe.

Life is full of beautiful moments. Live your life to the fullest. And do what youlove.

Can't be loyal to everyone, it's a conflict of interest.

Which country is suffering from too much freedom of speech? Name it, is there one?

I still think I'm writing Nancy Drew with a mortgage.

When a marriage culture fails, sexual desire no longer unites; instead it fragments.

Manage the remarkable balance between acting from your heart and close to your gifts with completing the obligations that your labor and tasks require of you. Leverage opportunity AND seize joy.

When you put Listerine in your mouth, it hurts. Germs do not go quietly.

I am proud to be a Southerner. I think Southern hospitality is very... I don't think it's just a term. I think it really exists. You can come to Savannah, and the people are so sweet and so nice.