The most watched programme on the BBC, after the news, is probably 'Doctor Who.' What has happened is that science fiction has been subsumed into modern literature. There are grandparents out there who speak Klingon, who are quite capable of holding down a job. No one would think twice now about a parallel universe.

Seeing, contrary to popular wisdom, isn't believing. It's where belief stops, because it isn't needed any more.

Your average witch is not, by nature, a social animal as far as other witches are concerned. There's a conflict of dominant personalities. There's a group of ringleaders without a ring. There's the basic unwritten rule of witchcraft, which is 'Don't do what you will, do what I say.' The natural size of a coven is one. Witches only get together when they can't avoid it.

Imagination is only intelligence having fun. A healthy mind knows how to switch between worlds, and which one you need to eat and sleep in.

Million-to-one chances...crop up nine times out of ten.

He'd been an angel once. He hadn't meant to Fall. He'd just hung around with the wrong people.

They say that the prospect of being hanged in the morning concentrates a man's mind wonderfully; unfortunately, what the mind inevitably concentrates on is that, in the morning, it will be in a body that is going to be hanged.