Time and space - time to be alone, space to move about - these may well become the great scarcities of tomorrow.

The long fight to save wild beauty represents democracy at its best. It requires citizens to practice the hardest of virtues - self-restraint.

It is easier to accept the message of the stars than the message of the salt desert. The stars speak of man's insignificance in the long eternity of time; the desert speaks of his insignificance right now.

For the mind disturbed, the still beauty of dawn is nature's finest balm.

A man who never sees a bluebird only half lives.

In nature, there is less death and destruction than death and transmutation.

Even the lifelong traveler knows but an infinitesimal portion of the Earth's surface. Those who have written best about the land and its wild inhabitants...have often been stay-at-home naturalists...concentrating their attention and affection on a relatively small area.