The great thing about being the only species that makes a distinction between right and wrong is that we can make up the rules for ourselves as we go along.

Arthur shook his head and sat down. He looked up. “I thought you must be dead …” he said simply. “So did I for a while,” said Ford, “and then I decided I was a lemon for a couple of weeks. I kept myself amused all that time jumping in and out of a gin and tonic.

I'm up to here with cool, okay? I am so amazingly cool you could keep a side of meat in me for a month. I am so hip I have difficulty seeing over my pelvis.

Many words and expressions which only a matter of decades ago were considered so distastefully explicit that, were they merely to be breathed in public, the perpetrator would be shunned, barred from polite society, and in extreme cases shot through the lungs, are now thought to be very healthy and proper, and their use in everyday speech and writing is evidence of a well-adjusted, relaxed and totally un****ed-up personality.

Arthur blinked at the screens and felt he was missing something important. Suddenly he realized what it was. "Is there any tea on this spaceship?" he asked.

He almost danced to the fridge, found the three least hairy things in it, put them on a plate and watched them intently for two minutes. Since they made no attempt to move within that time he called them breakfast and ate them. Between them they killed a virulent space disease he'd picked up without knowing it in the Flargathon Gas Swamps a few days earlier, which otherwise would have killed off half the population of the Western Hemisphere, blinded the other half, and driven everyone else psychotic and sterile, so the Earth was lucky there.

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.