Trillian had come to suspect that the main reason [Zaphood] had had such a wild and successful life was that he never really understood the significance of anything he did.

The difference between us and a computer is that, the computer is blindingly stupid, but it is capable of being stupid many, many million times a second.

I love deadlines. I like the whooshing noise they make as they go by.

How do you know you're having fun if there's no one watching you have it?

I'm 48, which is a bit of a shock to me. Why only last year I thought I was a precocious young thing!

How do I know the past is not a fiction conceived to reconcile the difference between my state of mind and the present.

He sniggered. He didn't like to think of himself as the sort of person who giggled or sniggered, but he had to admit that he had been giggling and sniggering almost continuously for well over half an hour now.