“All we have, it seems to me, is the beauty of art and nature and life, and the love which that beauty inspires.”

“There is beauty, heartbreaking beauty, everywhere.”

“If the life of natural things, millions of years old, does not seem sacred to us, then what can be sacred? Human vanity alone? Contempt for the natural world is contempt for life. The domination of nature leads to the domination of human nature. Anything becomes permissible. We return once more to the nightmare cultures of Hitler, Stalin, King Philip II, Montezuma, Caligula, Heliogabalus, Herod, the Pharaohs; Christ sacrificed himself in vain.”

“[I]t is the writer's duty to write fiction which promotes virtue, the good, the beautiful, and above all, the true. ... It is the writer's duty to hate injustice, to defy the powerful, and to speak for the voiceless. To be ... the severest critics of our own societies.”

“The new dam, of course, will improve things. If ever filled it will back water to within sight of the Bridge, transforming what was formerly an adventure into a routine motorboat excursion. Those who see it then will not understand that half the beauty of Rainbow Bridge lay in its remoteness, its relative difficulty of access, and in the wilderness surrounding it, of which it was an integral part. When these aspects are removed the Bridge will be no more than an isolated geological oddity, an extension of that museumlike diorama to which industrial tourism tends to reduce the natural world.”

“The world is big but it is comprehensible," says R. Buckminster Fuller. But it seems to me that the world is not nearly big enough and that any portion of its surface, left unpaved and alive, is infinitely rich in details and relationships, in wonder, beauty, mystery comprehensible only in part. The very existence of existence is itself suggestive of the unknown - not a problem, but a mystery. We will never get to the bottom of it, never know the whole of even so small and trivial and useless and precious a place as Aravaipa. Therein lies our redemption.”

“We can have wilderness without freedom; we can have wilderness without human life at all, but we cannot have freedom without wilderness, we cannot have freedom without leagues of open space beyond the cities, where boys and girls, men and women, can live at least part of their lives under no control but their own desires and abilities, free from any and all direct administration by their fellow men.”