Even when the pioneer didn't rape Nature, he divorced her a little too easily: he missed the great lesson that both ecology and medicine teach - that Man's great mission is not to conquer nature by main force but to cooperate with her intelligently but lovingly for his own purposes.
Lewis Mumford, "California and the Human Prospect", Sierra Club Bulletin, vol. 47, no. 9, 1962, pp. 45-6.