"“How like humans,” he said drily. “The universe is vast, majestic, intricate, patterned with inexhaustible beauty, vivid with infinitely varied life—and there’s only one thing in it that really interests you. The same thing that makes you buy books, build families, create atomic theories or, once upon a time, write poetry. Sex."

“But oh, this lifelong servitude to girls—whimsical, innocent, calculating, icicle-eyed and hearted, fleeting, tripping little demons! White, slim-necked, sharp-toothed, restlessly bobbing weasels with the soulful eyes of lemurs!”

“Girls had a way of blotting out all lesser, but not thereby despicable, delights. Girls were for dessert.”

“Then he was running not so much away from the cold and its crippling, supernatural horrors, as toward civilization, which was once again a bright emblem in his brain, an answer to all small-mindedness.”

“They’ve heard about space but they still don’t believe in it. They haven’t been out here to see for themselves that there isn’t any giant elephant under the earth, holding it up, and a giant tortoise holding up the elephant. If I say “planet” and “spaceship” to them, they still think “horoscope” and “flying saucer”.”

“In the wake of a Big Change, cultures and individuals are transposed, it’s true, yet in the main they continue much as they were, except for the usual scattering of unfortunate but statistically meaningless accidents.”

“Lieber, Fritz" at The Encyclopedia of Science Fiction”