"We stand now where two roads diverge. But unlike the roads in Robert Frost's familiar poem, they are not equally fair. The road we have long been traveling is deceptively easy, a smooth superhighway o…"

"It is a truism that in this world of ours, just as in the world of the ancient Greeks, whom we have taught ourselves to admire, there is a certain fatalism."

"I am not a scientist in the sense that I wear a white coat and work in a laboratory. I am a writer, and my laboratory is the world around me."

"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."

"The fact that we are so ignorant of the long-term effects of these chemicals is terrifying."