Not only are they ignorant of themselves, they cannot avoid falling into a ditch or stumbling over a rock in the path (perhaps they are bleary-eyed from studying or just absent-minded); yet they claim to know about abstract ideas, universals, separate forms, primary matter, quiddities, and different modes of being--objects so phantasmal I doubt Lynceus himself could make them out." -- Erasmus, In Praise of Folly (Folly, 56)
