Chemical waste products are the droppings of science.

It is from the progeny of this parent cell that we all take our looks; we still share genes around, and the resemblance of the enzymes of grasses to those of whales is in fact a family resemblance.

The capacity to blunder slightly is the real marvel of DNA. Without this special attribute, we would still be anaerobic bacteria and there would be no music.

Statistically, the probability of any one of us being here is so small that you'd think the mere fact of existing would keep us all in a contented dazzlement of surprise.

In real life, every field of science is incomplete, and most of them - whatever the record of accomplishment during the last 200 years - are still in their very earliest stages.

We owe our lives to the sun... How is it, then, that we feel no gratitude?

The greatest single achievement of nature to date was surely the invention of the molecule DNA.

It is in our genes to understand the universe if we can, to keep trying even if we cannot, and to be enchanted by the act of learning all the way.

I would send the complete works of Johann Sebastian Bach into outer space on the Voyager spacecraft. But that would be boasting.

Animals have genes for altruism, and those genes have been selected in the evolution of many creatures because of the advantage they confer for the continuing survival of the species.

We leave traces of ourselves wherever we go, on whatever we touch.

The ocean is six miles deep.

When you think of a collaboration, you think about people being in the same space.

We have to understand (this is another key piece) that there are some individuals who still need that drama, that experience of violence.

In the story, which is only a few chapters long in Genesis, Noah never even speaks until after the flood - but when you have Russell Crowe, you're going to make him speak.

Your sense of responsibility to others can never be excessive.

[The wall will be] ten feet taller. And every time they [Mexicans] protest, it's going to go up a little bit higher.

Be a lamp unto yourselves! Work out your liberation with diligence! Fill your mind with compassion!

I have enormous respect for Tom Daschle. The NRA has not yet taken a formal position on which I'm aware of on this matter, and I think Tom may be just getting a little ahead of things.

It's not the punch you expect that knocks you down.

May God give back to you in love all the love you have given.