“But to find a lingering unread missive from someone no longer living, and someone whose life had been so deeply entwined with ones own, raised the possibility that the past could never be a fully s...”

“The thing about memories wasn't that many of them inevitably faded, but that repeated recall of the ones you remembered burnished them into shining, gorgeous lies.”

“…inside of a year, almost all of the stuff of which you were made got regularly switched out for other stuff, as you ate and drank and breathed, and yet if you said you had the same identity you di...”

“There is a light within our soul that burns brighter than the sun. And we ignore it.”

“It's not much. You begin by thinking there is something extraordinary about it. But you'll find out, when you've been out in the world a while longer, unhappiness is the commonest thing there is.”

“A man can gasp out his life beside you-and you feel none of it. Pity, Sympathy, sure-but you don't feel the pain. Your belly is whole and that's what counts. A half-yard away someone's world is snu...”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“We realized that among us, among all the races, we had a staggering fund of knowledge and of techniques - that working together, by putting together all this knowledge and capability, we could arri...”

“It seems to me, Golan, that the advance of civilization is nothing but an exercise in the limiting of privacy.”

“Science fiction at its best should be crazy and dangerous, not sane and safe.”