I'm not an animal lover if that means you think things are nice if you can pat them, but I am intoxicated by animals.

No one will protect what they don't care about, and no one will care about what they have never experienced.

The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

What humans do over the next 50 years will determine the fate of all life on the planet.

Anyone who believes in indefinite growth on a physically finite planet is either mad or an economist

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?

How could I look my grandchildren in the eye and say I knew what was happening to the world and did nothing.

Bringing nature into the classroom can kindle a fascination and passion for the diversity of life on earth and can motivate a sense of responsibility to safeguard it.

I just wish the world was twice as big and half of it was still unexplored.

I've learned to be comforted in the dark spot of my mind.

You only have control over the storms you are able to have peace in.

We have the disgrace of racial discrimination, or we have prejudice against people because of their religion. We have not had the courage to uproot these things, although we know they are wrong.

Docility is the observable half of reason.

Everything in life is elusive.

In this era of uncertainty and conflict, the United States - blessed with the world's strongest military, most ingenious economy, and most tolerant society - remains a model and leader to the world.

The country was in peril; he was jeopardizing his traditional rights of freedom and independence by daring to exercise them.

Fear is not a disease of the body; fear kills the soul.

There was nothing I loved more than teasing Dimitri. Well, aside from maybe kissing him.

Males and females have never seemed to fully understand each other. It will probably continue this way, but I think that's part of the magic of it all.