He had extracted himself from the Cambridge one-way system by the usual method, which involved going round and round it faster and faster until he achieved a sort of escape velocity and flew off at a tangent in a random direction, which he was now trying to identify and correct for.

Zaphod Beeblebrox, adventurer, ex-hippie, good-timer (crook? quite possibly), manic self-publicist, terrible bad at personal relationships, often thought to be completely out to lunch.

It is known that there are an infinite number of worlds, simply because there is an infinite amount of space for them to be in. However, not every one of them is inhabited. Therefore, there must be a finite number of inhabited worlds. Any finite number divided by infinity is as near to nothing as makes no odds, so the average population of all the planets in the Universe can be said to be zero. From this it follows that the population of the whole Universe is also zero, and that any people you may meet from time to time are merely the products of a deranged imagination.

The light was only just visible - except of course that there was no one to see, no witnesses, not this time, but it was nevertheless a light.

If there was one thing life had taught her it was that there are times when you do not go back for your bag and times when you do. It had yet to teach her to distinguish between the two types of occasion.

Bypasses are devices that allow some people to dash from point A to point B very fast while other people dash from point B to point A very fast.

He had extracted himself from the Cambridge one-way system by the usual method, which involved going round and round it faster and faster until he achieved a sort of escape velocity and flew off at a tangent in a random direction, which he was now trying to identify and correct for.