Factual error: In chapter 11, when different types of liars are described, one of those listed is High Machiavellians, and it is said this name comes from "the ruthless Italian prince". But Niccolo Machiavelli was never a prince, but a diplomat and politician. His most famous book is called "Il Principe" (the Prince), but he himself did not hold that title. Submitted by Twotall