at least nine-tenths of all the original reality ever created lies outside the multiverse, and since the multiverse by definition includes absolutely everything that is anything, this puts a bit of a strain on things. Outside the boundaries of the universe lie the raw realities, the could-have-beens, the might-bes, the never-weres, the wild ideas, all being created and uncreated chaotically like elements in fermenting supernovas. Just occasionally where the walls of the worlds have worn a bit thin, they can leak in.
Terry PratchettThe thing about witchcraft," said Mistress Weatherwax, "is that it's not like school at all. First you get the test, and then afterward you spend years findin' out how you passed it. It's a bit like life in that respect
Terry PratchettI don't want to hurt you, Mistress Weatherwax," said Mrs Gogol. "That's good," said Granny. "I don't want you to hurt me either.
Terry PratchettCredulous: having views about the world, the universe and humanity's place in it that are shared only by very unsophisticated people and the most intelligent and advanced mathematicians and physicists.
Terry PratchettThe singers all loathe the sight of one another, the chorus despises the singers, they both hate the orchestra, and everyone fears the conductor; the staff on one prompt side won't talk to the staff on the opposite prompt side, the dancers are all crazed from hunger in any case.
Terry PratchettPeople look down on stuff like geography and meteorology, and not only because they're standing on one and being soaked by the other. They don't look quite like real science. But geography is only physics slowed down and with a few trees stuck on it, and meteorology is full of excitingly fashionable chaos and complexity. And summer isn't a time. It's a place as well. Summer is a moving creature and likes to go south for the winter.
Terry Pratchett