Guards! Guards!

It must, he’d decided, have something to do with the common denominator. In the entire world of mathematics there could be no denominator as common as Nobby.

“Down there,” he said, “are people who will follow any dragon, worship any god, ignore any iniquity. All out of a kind of humdrum, everyday badness. Not the really high, creative loathesomeness of the great sinners, but a sort of mass-produced darkness of the soul. Sin, you might say, without a trace of originality. They accept evil not because the

Once you’ve ruled out the impossible then whatever is left, however improbable, must be the truth. The problem lay in working out what was impossible, of course. That was the trick, all right.

“I believe you find life such a problem because you think there are the good people and the bad people,” said the man. “You’re wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides.”

Never trust any ruler who puts his faith in tunnels and bunkers and escape routes. The chances are that his heart isn’t in the job.”