While a book has got to be worthwhile from the point of view of the reader it's got to be worthwhile from the point of view of the writer as well.

He’s bound to have done something,” Nobby repeated. In this he was echoing the Patrician’s view of crime and punishment. If there was a crime, there should be punishment. If the specific criminal should be involved in the punishment process then this was a happy accident, but if not then any criminal would do, and since everyone was undoubtedly guilty of something, the net result was that, in general terms, justice was done.

You get a wonderful view from the point of no return.

Granny Weatherwax was not a good loser. From her point of view, losing was something that happened to other people.