“If my doctor told me I had only six minutes to live, I wouldn't brood. I'd type a little faster.”

“If I had felt then as I feel now, or as I felt a few years after I had married her, nothing could possibly have persuaded me to marry a woman who smoked. Dates, yes. Sexual adventures, yes. But to pin myself permanently inside closed quarters with a smoker? Never. Never. Never. Beauty wouldn't count, sweetness wouldn't count, suitability in every other respect wouldn't count.”

“All right, Schwartz, tackle my mind now. Go as deep as you want. I was born on Baronn in the Sirius Sector. I lived my life in an atmosphere of anti-Terrestrialism in the formative years, so I can't help what flaws and follies lie at the roots of my subconscious. But look on the surface and tell me if, in my adult years, I have not fought bigotry in myself. Not in others; that would be easy. But in myself, and as hard as I could.”

“I am trying now to re-create in my mind the picture of the man as I saw him in 1939- he, the revered author of Sinister Barriers, I the novice. I think I can rely on my near-photographic memory for the purpose. (I call it "near-photographic" because I can only remember things that happen to be lying around near photographs.)Let's see, as I recall, he is six-feet seven-inches tall (when he is sitting down, that is) with a long and majestic English face. Then, too, I distinctly remember, there was a small flashing golden aura about his head, the occasional play of hissing flashes when he moved it suddenly, and the distant rumble of thunder when he spoke.”

“I have never, in all my life, not for one moment, been tempted toward religion of any kind. The fact is that I feel no spiritual void. I have my philosophy of life, which does not include any aspect of the supernatural and which I find totally satisfying. I am, in short, a rationalist and believe only that which reason tells me is so.”

“A couple of months ago I had a dream, which I remember with the utmost clarity. (I don't usually remember my dreams.) I dreamed I had died and gone to Heaven. I looked about and knew where I was-green fields, fleecy clouds, perfumed air, and the distant, ravishing sound of the heavenly choir. And there was the recording angel smiling broadly at me in greeting. I said, in wonder, "Is this Heaven?" The recording angel said, "It is." I said (and on waking and remembering, I was proud of my integrity), "But there must be a mistake. I don't belong here. I'm an atheist." "No mistake," said the recording angel. "But as an atheist how can I qualify?" The recording angel said sternly, "We decide who qualifies. Not you." "I see," I said. I looked about, pondered for a moment, then turned to the recording angel and asked, "Is there a typewriter here that I can use?" The significance of the dream was clear to me. I felt Heaven to be the act of writing, and I have been in Heaven for over half a century and I have always known this.”

“A number of years ago, when I was a freshly-appointed instructor, I met, for the first time, a certain eminent historian of science. At the time I could only regard him with tolerant condescension.I was sorry of the man who, it seemed to me, was forced to hover about the edges of science. He was compelled to shiver endlessly in the outskirts, getting only feeble warmth from the distant sun of science- in-progress; while I, just beginning my research, was bathed in the heady liquid heat up at the very center of the glow.In a lifetime of being wrong at many a point, I was never more wrong. It was I, not he, who was wandering in the periphery. It was he, not I, who lived in the blaze.I had fallen victim to the fallacy of the 'growing edge;' the belief that only the very frontier of scientific advance counted; that everything that had been left behind by that advance was faded and dead.But is that true? Because a tree in spring buds and comes greenly into leaf, are those leaves therefore the tree? If the newborn twigs and their leaves were all that existed, they would form a vague halo of green suspended in mid-air, but surely that is not the tree. The leaves, by themselves, are no more than trivial fluttering decoration. It is the trunk and limbs that give the tree its grandeur and the leaves themselves their meaning.There is not a discovery in science, however revolutionary, however sparkling with insight, that does not arise out of what went before. 'If I have seen further than other men,' said Isaac Newton, 'it is because I have stood on the shoulders of giants.”