The universe, they said, depended for its operation on the balance of four forces which they identified as charm, persuasion, uncertainty and bloody-mindedness.
Terry PratchettI'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
Terry PratchettAnd we don't often get any wading birds in the River Ankh, mainly because the pollution would eat their legs away and anyway, it's easier for them to walk on the surface.
Terry Pratchett