
The human spirit needs places where nature has not been rearranged by the hand of man.

The wildlife of today is not ours to do with as we please. We have it in trust. We must account for it to those who come after.

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.
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.
Until we extend our circle of compassion to all living things, humanity will not find peace.
The more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for destruction.
The greatness of a nation and its moral progress can be judged by the way its animals are treated.