Quote by Aldo Leopold
"Each species has a right to exist simply because it exists, not because it serves human needs."
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."