The complexities of cause and effect defy analysis.

A learning experience is one of those things that says, 'You know that thing you just did? Don't do that.

For as long as he could remember, he’d suffered from a vague nagging feeling of being not all there.

Life... is like a grapefruit. Well, it's sort of orangey-yellow and dimpled on the outside, wet and squidgy in the middle. It's got pips inside, too. Oh, and some people have half a one for breakfast.

One always overcompensates for disabilities. I'm thinking of having my entire body surgically removed.

Goosnargh," said Ford Prefect, which was a special Betelgeusian word he used when he knew he should say something but didn't know what it should be.

If I want to read something that's really giving me something serious and fundamental to think about, about the human condition, if you like, or what we're all doing here, or what's going on, then I'd rather read something by a scientist in the life sciences, like Richard Dawkins, for instance.