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.
More Aldo Leopold quotes :
Is education possibly a process of trading awareness for things of lesser worth? The goose who trades his is soon a pile of feathers.Aldo Leopold
Harmony with land is like harmony with a friend you cannot cherish his right hand and chop off his left.Aldo Leopold