The victory of Christianity over paganism was the greatest psychic revolution in the history of our culture. By destroying pagan animism, Christianity made it possible to exploit nature in a mood of indifference to the feelings of natural objects. – Lynn I. White, Jr., Science, 10 March 1967

There is hope if people will begin to awaken that spiritual part of themselves, that heartfelt knowledge that we are caretakers of this planet. – Brooke Medicine Eagle

Time and space – time to be alone, space to move about – these may well become the great scarcities of tomorrow. – Edwin Way Teale, Autumn Across America, 1956

Humanity is on the march, earth itself is left behind. – David Ehrenfeld, The Arrogance of Humanism, 1978