The sign, which says: "Do not, under any circumstances, open this door!" - Of course, I've read it. Why do you think I want it opened?.. To see why they wanted it shut, of course. This exchange contains almost all you need to know about human civilization. At least, those bits of it that are now under the sea, fenced off or still smoking.

Over the centuries, mankind has tried many ways of combating the forces of evil... prayer, fasting, good works and so on. Up until Doom, no one seemed to have thought about the double-barrel shotgun. Eat leaden death, demon...

The trouble with life was that you didn’t get a chance to practice before doing it for real.

Granny Weatherwaz was a witch. That was quite acceptable in the Ramtops, and no one had a bad word to say about witches. At least, not if he wanted to wake up in the morning the same shape as he went to bed.

They can tak' oour lives but they canna tak' oour troousers!

The words are easy - most of them have already been invented.

I must have read every issue of 'Punch' published in the 20th century, and I think in the process I picked up the true voice of English humour - that amiable, fairly liberal, laconic voice which you find in something like 'Three Men in a Boat.'