There is one quality that characterizes all of us who deal with the sciences of the earth and its life - we are never bored.

But man is a part of nature, and his war against nature is inevitably a war against himself.

One way to open your eyes is to ask yourself, "What if I had never seen this before? What if I knew i would never see it again?

Conservation is a cause that has no end. There is no point at which we will say our work is finished.

Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts.

The human race is challenged more than ever before to demonstrate our mastery, not over nature but of ourselves.

Science is part of the reality of living; it is the what, the how, and the why of everything in our experience.

We cannot have peace among men whose hearts find delight in killing any living creature.

Knowing what I do, there would be no future peace for me if I kept silent.

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.

Drink in the beauty and wonder at the meaning of what you see.

When your tears become invisible, disappear

Before innovation - or practical creativity - there is insight. You must see the world differently.

I want to affirm that thinking and living, knowing and doing, theory and practice intersect.

Justice and the facade of a temple are seen best from the outside.

Street performers, homemade crafts, keep your wallet in your front pocket and don't buy any crap!

"Have you ever found anything that gives you relief?" "Yes. A drink."

Why is it the Mongols of this world always tell us they're defending us against the Mongols?

Love what you do and who you truly are. Be willing to die for it. If you are true to yourself, you can never go wrong

More history is made by secret handshakes than by battles, bills and proclamations.

As for me, I rarely write a song. But when I do write a song, like "Ain't No Chimneys in the Projects," which came to me at three a.m. one morning, on a whim - I get a percentage.