The world is not in your books and maps; it's out there.
We won't have a society if we destroy the environment.
The continued existence of wildlife and wilderness is important to the quality of life of humans.
We won't protect what we don't love, and we don't love what we don't know.
The wilderness holds answers to questions man has not yet learned to ask.
The wildlife and its habitat cannot speak, so we must and we will.
What we are doing to the forests of the world is but a mirror reflection of what we are doing to ourselves and to one another.
The human spirit needs places where nature has not been rearranged by the hand of man.
Wilderness is not a luxury but a necessity of the human spirit.
We won't save places we don't love; we can't love places we don't know; and we can't know places we haven't learned.
The more I learn about people, the more I like my dog.
Until one has loved an animal, a part of one's soul remains unawakened.
The wildlife of today is not ours to dispose of as we please. We have it in trust. We must account for it to those who come after.
The Earth does not belong to us: we belong to the Earth.
In the end, we will conserve only what we love; we will love only what we understand, and we will understand only what we are taught.
A true conservationist is a man who knows that the world is not given by his fathers but borrowed from his children.
The greatness of a nation and its moral progress can be judged by the way its animals are treated.
The clearest way into the Universe is through a forest wilderness.
Conservation is a state of harmony between men and land.