I like to define biology as the history of the earth and all its life - past, present, and future.

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.

Repeat a lie a hundred times and it becomes an ideal.

Your genome knows much more about your medical history than you do.

A joke a day keeps the gloom away!

Most things in San Francisco can be bought or taken.

Creativity is really at the center of what I do, it's a mix of creativity, innovation and savoir faire that creates magical products.

Prayer is the highest intelligence, the profoundest wisdom, the most vital, the most joyous, the most efficacious, the most powerful of all vocations.

The end of suffering does not justify the suffering, what a mess I am, I thought, what a fool, how foolish and narrow, how worthless, how pinched and pathetic, how helpless.

People hate to describe their music. What we have come to call it is "beat up your mom" music. As far as describing what it sounds like, I guess you'd have to listen.

It is better that the truth be known than that scandal be covered up.

Democracy is a process, not a static condition. It is becoming, rather than being. It can be easily lost, but is never finally won.