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. There was also the curious incident of the orangutan in the night-time.
Terry PratchettThat's a nice song,' said young Sam, and Vimes remembered that he was hearing it for the first time. It's an old soldiers' song,' he said. Really, sarge? But it's about angels.' Yes, thought Vimes, and it's amazing what bits those angels cause to rise up as the song progresses. It's a real soldiers' song: sentimental, with dirty bits. As I recall, they used to sing it after battles,’ he said. 'I've seen old men cry when they sing it,’ he added. Why? It sounds cheerful.' They were remembering who they were not singing it with, thought Vimes. You'll learn. I know you will.
Terry PratchettHistory isn't like that. History unravels gently, like an old sweater. It has been patched and darned many times, reknitted to suit different people, shoved in a box under the sink of censorship to be cut up for the dusters of propaganda, yet it always - eventually - manages to spring back into its old familar shape. History has a habit of changing the people who think they are changing it. History always has a few tricks up its frayed sleeve. It's been around a long time.
Terry Pratchett