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.

Species evolve to meet the environment. An intelligent species changes the environment to suit itself. As soon as a species becomes intelligent, it should stop evolving.

Never tell a computer to forget it.

And every friend I've got has been writing Mars stories. It was pretty clear I'd never catch up.

I do suspect that privacy was a passing fad.

Intelligence is just a tool to be used toward a goal, and goals are not always chosen intelligently.

The reader has certain rights. He bought your story. Think of this as an implicit contract. He's entitled to be entertained, instructed, amused; maybe all three. If he quits in the middle, or puts the book down feeling his time has been wasted, you're in violation.