As convenient as it is for information to come to us, libraries do have a valuable side effect: they force all of the smart people to come together in one place where they can interact with one another.
Anyone can say 'no'. It is the first word a child learns and often the first word he speaks. It is a cheap word because it requires no explanation, and many men and women have acquired a reputation for intelligence who know only this word and have used it in place of thought on every occasion.