She was convinced that she was anorexic, because every time she looked in the mirror she did indeed see a fat person.
Terry PratchettOf course, Ankh-Morpork's citizens had always claimed that the river water was incredibly pure. Any water that had passed through so many kidneys, they reasoned, had to be very pure indeed.
Terry PratchettBut is all this true?" said Brutha. Didactylos shrugged. "Could be. Could be. We are here and it is now. The way I see it is, after that, everything tends towards guesswork." "You mean you don't KNOW it's true?" said Brutha. "I THINK it might be," said Didactylos. "I could be wrong. Not being certain is what being a philosopher is all about.
Terry Pratchett