“A number of religions in Ankh-Morpork still practiced human sacrifice, except that they didn't really need to practice any more because they had got so good at it.”
“If the Creator had said, "Let there be light" in Ankh-Morpork, he'd have got no further because of all the people saying "What colour?”
“Ankh-Morpork is a godless city--''I thought it had more than three hundred places of worship?' said Maladict.Strappi stared at him in rage that was incoherent until he managed to touch bottom again. 'Ankh-Morpork is a godawful city', he recovered.”
“AUM or Om is not related to any religion because Om was practiced before the birth of all the religions of the world.”
“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.”
“All the different religions are really like different paths leading to the same goal. So there is no question of prescribing any rigid set of principles or practices. Everyone has got the right to follow his own path and approach God in his own way.”