For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. – Richard P. Feynman

One of the first laws against air pollution came in 1300 when King Edward I decreed the death penalty for burning of coal. At least one execution for that offense is recorded. But economics triumphed over health considerations, and air pollution became an appalling problem in England. – Glenn T. Seaborg, Atomic Energy Commission chairman, speech, Argonne National La

We abuse land because we regard it as a commodity belonging to us. When we see land as a community to which we belong, we may begin to use it with love and respect. – Aldo Leopold, A Sand County Almanac

Zoos are becoming facsimiles – or perhaps caricatures – of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all. – Michael Fox, Sierra, November-December 1990