“All human plans [are] subject to ruthless revision by Nature, or Fate, or whatever one preferred to call the powers behind the Universe.”

“Sometimes when I'm in a bookstore or library, I am overwhelmed by all the things that I do not know. Then I am seized by a powerful desire to read all the books, one by one.”

“So this, thought Jan, with a resignation that lay beyond all sadness, was the end of man. It was an end that no prophet had foreseen – an end that repudiated optimism and pessimism alike.Yet it was fitting: it had the sublime inevitability of a great work of art. Jan had glimpsed the universe in all its immensity, and knew now that it was no place for man. He realized at last how vain, in the ultimate analysis, had been the dream that lured him to the stars.For the road to the stars was a road that forked in two directions, and neither led to a goal that took any account of human hopes or fears.”

“Imagine that you're an intelligent extraterrestrial, concerned only with verifiable truths. You discover a species that has divided itself into thousands - no, by now millions - of tribal groups holding an incredible variety of beliefs about the origin of the universe and the way to behave in it. Although many of them have ideas in common, even when there's 99% overlap, the remaining one percent's enough to set them killing and torturing each other, over trivial points of doctrine, utterly meaningless to outsiders. "How to account for such irrational behavior? (...) religion was the by-product of fear - a reaction to a mysterious and often hostile universe. For much of human prehistory, it may have been a necessary evil - but why was it so much more evil than necessary - and why did it survive when it was no longer necessary?”

“CNN is one of the participants in the war. I have a fantasy where Ted Turner is elected president but refuses because he doesn't want to give up power.”

“In this universe the night was falling; the shadows were lengthening towards an east that would not know another dawn. But elsewhere the stars were still young and the light of morning lingered; and along the path he once had followed, Man would one day go again.”

“He felt like a young student again, confronted with all the art and knowledge of mankind. The experience was both exhilarating and depressing; a whole universe lay at his fingertips, but the fraction of it he could explore in an entire lifetime was so negligible that he was sometimes overwhelmed with despair.”