The greatness of a nation and its moral progress can be judged by the way its animals are treated.
The love for all living creatures is the most noble attribute of man.
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.
Conservation is a state of harmony between men and land.
In every walk with nature, one receives far more than he seeks.
The more I learn about people, the more I like my dog.
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.
If you really think that the environment is less important than the economy, try holding your breath while you count your money.
Nature is not a place to visit. It is home.
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 wilderness holds answers to more questions than we have yet learned to ask.
The question is not, can they reason? Nor, can they talk? But, can they suffer?
The wildlife and its habitat cannot speak, so we must and we will.
A true conservationist is a man who knows that the world is not given by his fathers but borrowed from his children.
Look deep into nature, and then you will understand everything better.
We won't have a society if we destroy the environment.
Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.
The earth does not belong to us: we belong to the earth.