Keep your rivers flowing as they will, and you will continue to know the most important of all freedoms-the boundless scope of the human mind to contemplate wonders, and to begin to understand their meaning.

If I could go back to a point in history to try to get things to come out differently, I would go back and tell moses to go up the mountain again and get the other tablet. Because the Ten Commandments just tell us what we are supped to do with one another, not a word about our relationship to the earth. Genesis starts with these commands: multiply, replenish the earth, and subdue it. We have multiplied very well, we have replenished our populations very well, we have subdued it all too well, and we don't have any other instruction.

Perhaps we'll realize that each of us has not one vote but ten thousand or a million.

The wild places are where we began. When they end, so do we.

People have alleged that I have inspired many young people over the years, but I say, it was just the opposite.

Keep your rivers flowing as they will, and you will continue to know the most important of all freedoms-the boundless scope of the human mind to contemplate wonders, and to begin to understand their meaning.

For how many people do you think might yet stand on this planet before the sun grows cold? That's the responsibility we hold in our hands.