“Fear is the brother of hate.”

“One mark of a good officer, he remembered, was the ability to make quick decisions. If they happen to be right, so much the better”

“There were timelines branching and branching, a mega-universe of universes, millions more every minute. Billions? Trillions? The universe split every time someone made a decision. Split, so that ev...”

“I myself have dreamed up a structure intermediate between Dyson spheres and planets. Build a ring 93 million miles in radius - one Earth orbit - around the sun. If we have the mass of Jupiter to wo...”

“Mother Nature doesn't care if you're having fun. ”

“Never fire a laser at a mirror. ”

“It's very difficult for a black man to get out of South-Central Los Angeles, and get out civilized....The only men I know who have escaped, all began reading Robert Heinlein at age ten.”

“Just because it's fiction doesn't mean it's any less true.”

“Oh, Sweetie. No one ever gets through their TBR list. For every book you finish, you'll add five more. That's just the way it works.”

“If you don't have time to read, you don't have the time (or the tools) to write. Simple as that.”

“Even if all life on our planet is destroyed, there must be other life somewhere which we know nothing of. It is impossible that ours is the only world; there must be world after world unseen by us,...”

“Business or profession?''I guess you'd call me a writer.'No profession,' said the police car, as if talking to itself. The light held him fixed, like a museum specimen, needle thrust through chest.”

“Prediction is the business of prophets, clairvoyants, and futurologists. It is not the business of novelists. A novelists business is lying. The weather bureau will tell you what next Tuesday will ...”