Individual thinkers since the days of Ezekiel and Isaiah have asserted that the despoliation of land is not only inexpedient but wrong. Society, however, has not yet affirmed their belief.
Aldo LeopoldWe can be ethical only in relation to something we can see, feel, understand, love, or otherwise have faith in.
Aldo LeopoldWilderness, then, assumes unexpected importance as a laboratory for the study of land - health.
Aldo LeopoldNo important change in ethics was ever accomplished without an internal chage in our intellectual emphasis, loyalties, affections, and convictions.
Aldo LeopoldThe most important characteristic of an organism is that capacity for internal self-renewal known as health. There are two organisms whose processes of self-renewal have been subjected to human interference and control. One of these is man himself (medicine and public health). The other is land (agriculture and coservation). The effort to control the health of land has not been very successful.
Aldo Leopold