The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future. – Marya Mannes, More in Anger, 1958

In America today you can murder land for private profit. You can leave the corpse for all to see, and nobody calls the cops. – Paul Brooks, The Pursuit of Wilderness, 1971

Nature always strikes back. It takes all the running we can do to remain in the same place. – Rene Dubos, Medical Utopias, 1961