So, the world is fine. We don’t have to save the world—the world is big enough to look after itself. What we have to be concerned about, is whether or not the world we live in, will be capable of sustaining us in it. That’s what we need to think about.

It all sounds rather naive and sentimental to be talking about children laughing and dancing and singing together when we all know perfectly well that what children do in real life is snarl and take drugs.

Marvin was humming ironically because he hated humans so much.

And for all the richest and most successful merchants life inevitably became rather dull and niggly, and they began to imagine that this was therefore the fault of the worlds they'd settled on.

The complexities of cause and effect defy analysis.

It's good to leave your room super-messy when you're away. Whoever tries to break into your room will thought it has already been ransacked.

The world is a thing of utter inordinate complexity and richness and strangeness that is absolutely awesome.