A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community. It is wrong when it tends otherwise.
Aldo LeopoldAll conservation of wildness is self-defeating, for to cherish we must see and fondle, and when enough have seen and fondled, there is no wilderness left to cherish.
Aldo LeopoldWhen some remote ancestor of ours invented the shovel, he became a giver: He could plant a tree. And when the axe was invented, he became a taker: He could chop it down. Whoever owns land has thus assumed, whether he knows it or not, the divine functions of creating and destroying plants.
Aldo LeopoldRecreational development is a job not of building roads into lovely country, but of building receptivity into the still unlovely human mind.
Aldo LeopoldConservationists have, I fear, adopted the pedagogical method of the prophets: we mutter darkly about impending doom if people don't mend their ways. The doom is impending, all right; no one can be an ecologist, even an amateur one, without seeing it. But do people mend their ways for fear of calamity? I doubt it. They are more likely to do it out of pure curiosity and interest.
Aldo Leopold