Quote by Aldo Leopold
"The cries of the wild geese descending out of the night sky are not economic propositions."
More from Aldo Leopold
"In every walk with nature, one receives far more than he seeks."
"The land ethic simply enlarges the boundaries of the community to include soils, waters, plants, and animals, or collectively: the land."
"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."
"Conservation is a state of harmony between men and land."