"The world has become too dangerous for anything less than utopias."

“Planning a good society as far ahead as one can see, does not mean that our adventures have ended; they have just begun. Human nature is growing up. As we put behind us the accidents and tears of childhood squabbles and the wooden swords and shields, and begin to try on our new space pilots'" uniform, so to speak, we begin to see what we can teach ourselves and what we can really become with new self-control over new adult powers.”

“The chemistry of genetics is primarily the chemistry and structure of the hereditary nucleic acid chains, DNA and RNA, and of the proteins whose structure they in turn control and the mechanism of this control.”

“To say that basic science is exciting may sound like a contradiction... But I would remind you that there are two intellectual excitements that are not tame at all and that we remember all our lives. One is the thrill of following out a chain of reasoning for yourself; the other is the pleasure of watching several strongly individualistic personalities argue about their deepest convictions. That is to say, the thrill of a detective story and the pleasure of watching a play by George Bernard Shaw.”

“1992 Obituary in the New York Times”

“The needs of man, if life is to survive, are usually said to be four -- air, water, food, and in the severe climates, protection. But it is becoming clear today that the human organism has another absolute necessity... This fifth need is the need for novelty -- the need, throughout our waking life, for continuous variety in the external stimulation of our eyes, ears, sense organs, and all our nervous network.”

“Jesus does not give us a discourse on the nature of the universe, he gives us a set of active verbs. And yet what better discourse on the real nature of the universe could there be?”