Unless we have courage to recognize cruelty for what it is - whether its victim is human or animal - we cannot expect things to be much better in the world.

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.

The animals haven't split apart into what they think and what they feel. They are whole and trust in their instincts.

Our children await Christmas presents like politicians getting in election returns: there's the Uncle Fred precinct and the Aunt Ruth district still to come in.

When you're six years old, the word 'poo' is the funniest word on God's earth, but this insults my intelligence.

But in the night he woke and held her tight as though she were all of life and it was being taken from him. He held her feeling she was all of life there was and it was true.

Physically, a man is a man for a much longer time than a woman is a woman.

The world would be a much nicer place if people only used guns on themselves.

I did a movie with Leonardo DiCaprio, and his skill level was eons ahead of mine. It was really more like an abattoir - he just slaughtered my character over and over again.

I do not know of a better cure for sorrow than to pity somebody else.

When the U.S. Supreme Court upheld the Affordable Care Act, Sarah Palin tweeted, 'Obama lies; freedom dies.' She's referring, I guess, to the freedom to go without health care when you're sick.

My parents raised me to not ever look at race or color, so it doesn't have a big part in my self-identity.