Shannon

“a bad map is worse than no map at all for it engendered in the traveler a false confidence and might easily cause him to set aside these instincts which would otherwise guide him if he would but place himself in their care. He said that to follow a false map was to invite disaster. He gestured at the sketching in the dirt. As if to invite them to behold its futility. The second man on the bench nodded his agreement in this and said that the map in question was a folly and that the dogs in the street would piss upon it.”
― Cormac McCarthy, The Crossing