Anyone who is capable of getting themselves made President should on no account be allowed to do the job.

I may not have gone where I intended to go, but I think I have ended up where I intended to be.

Imagine" he said, "never even thinking, 'We are alone,' simply because it has never occurred to you to think that there's any other way to be.

Time travel, by its very nature, was invented in all periods of history simultaneously.

All you really need to know for the moment is that the universe is a lot more complicated than you might think, even if you start from a position of thinking it's pretty damn complicated in the first place.

You may not instantly see why I bring the subject up, but that is because my mind works so phenomenally fast, and I am at a rough estimate thirty billion times more intelligent than you. Let me give you an example. Think of a number, any number.” “Er, five,” said the mattress. “Wrong,” said Marvin. “You see?

First we thought the PC was a calculator. Then we found out how to turn numbers into letters with ASCII — and we thought it was a typewriter. Then we discovered graphics, and we thought it was a television. With the World Wide Web, we've realized it's a brochure.