He used to tell me, 'Do what you like to do. It'll probably turn out to be what you do best.

Something will have gone out of us as a people if we ever let the remaining wilderness be destroyed ... so that never again can we have the chance to see ourselves single, separate, vertical and individual in the world, part of the environment of trees and rocks and soil, part of the natural world and competent to belong in it.

If we don't know where we are, we don't know who we are.

You married me...but you didn't marry what you could make out of me.

We are the only species which, when it chooses to do so, will go to great effort to save what it might destroy.

It is the abiding concern of thinking people to preserve what keeps men human-to save our contact with nature of which we are a part.

Youth hasn't got anything to do with chronological age. It's times of hope and happiness.