"[T]he rule is irrational; for it involves the assumption that wherever A's scribes made a mistake they produced an impossible reading.
Three minutes' thought would suffice to find this out; but thought is irksome and 3 minutes is a long time."
--A.E Housman, Juvenal (1905), xi
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).