Many people can talk sense with concepts but cannot talk sense about them; they know by practice how to operate with concepts, anyhow inside familiar fields, but they cannot state the logical regulations governing their use. They are like people who know their way about their own parish, but cannot construct or read a map of it, much less a map of the region or continent in which their parish lies. Gilbert Ryle (1900-1976) í The Concept of Mind Þegar ég las þetta yfir þá rann fyrir mér sú...