We're in a giant car heading toward a brick wall and everyone's arguing over where they're going to sit.

There seems to be no sign of intelligent life anywhere . . .

What is the use of a house, if you haven't got a tolerable planet to put it on?

The Earth is what we all have in common.

When I see an adult on a bicycle, I do not despair for the future of the human race.

The best investment on earth is earth.

First, we would not accept a treaty that would not have been ratified, nor a treaty that I thought made sense for the country.

Plans to protect air and water, wilderness and wildlife are in fact plans to protect man.

I do not want the peace which passeth understanding, I want the understanding which bringeth peace.

Don't agonize, organize.