Earth provides enough to satisfy every man's needs, but not every man's greed.
We won't have a society if we destroy the environment.

The wilderness holds answers to more questions than we have yet learned to ask.

Conservation is a state of harmony between men and land.
The wildlife and its habitat cannot speak, so we must and we will.
The environment is where we all meet; where we all have a mutual interest; it is the one thing all of us share.
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.

One touch of nature makes the whole world kin.
Wildlife and its habitat cannot speak, so we must and we will.

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.
The continued existence of wildlife and wilderness is important to the quality of life of humans.
Until we stop harming all other living beings, we are still savages.
The greatness of a nation and its moral progress can be judged by the way its animals are treated.
Look deep into nature, and then you will understand everything better.
Wilderness is not a luxury but a necessity of the human spirit.