Maryanne

“Ankh-Morpork! Pearl of cities! This is not a completely accurate description, of course — it was not round and shiny — but even its worst enemies would agree that if you had to liken Ankh-Morpork to anything, then it might as well be a piece of rubbish covered with the diseased secretions of a dying mollusc.”
― Terry Pratchett, The Light Fantastic

“What're quantum mechanics?"

"I don't know. People who repair quantums, I suppose.”
― Terry Pratchett, Eric

“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”
― Terry Pratchett, Interesting Times: The Play

“The disc, being flat, has no real horizon. Any adventurous sailor who got funny ideas from staring at eggs and oranges for too long and set out for the antipodes soon learned that the reason why distant ships sometimes looked as though they were disappearing over the edge of the world was that they were disappearing over the edge of the world.”
― Terry Pratchett, The Light Fantastic