Every cell is a triumph of natural selection, and we’re made of trillions of cells. Within us, is a little universe.

When you buy a used car, you kick the tires, you look at the odometer, you open up the hood. If you do not feel yourself an expert in automobile engines, you bring a friend who is. And you do this with something as unimportant as an automobile. But on the issues of the transcendent, of ethics, of morals, of the origins of the world, of the nature of human beings, on those issues should we not insist upon at least equally skeptical scrutiny?

Human beings grew up in forests; we have a natural affinity for them. How lovely a tree is, straining toward the sky.

I would suggest that science is, at least in my part, informed worship.

Man is a transitional animal. He is not the climax of creation

Somewhere, something incredible is waiting to be known.

An extraterrestrial being, newly arrived on Earth - scrutinizing what we mainly present to our children in television, radio, movies, newspapers, magazines, the comics, and many books - might easily conclude that we are intent on teaching them murder, rape, cruelty, superstition, credulity, and consumerism. We keep at it, and through constant repetition many of them finally get it.