 Arguments based on necessity may be motivated by just that worry. On this account, it is not enough that someone be able to help others track right reason, he must be able to do so within a certain domain. Locke thought the most urgent question for political philosophy was to “distinguish exactly the business of civil government” (Locke 1689 [1983: 26]), to determine what things are properly Caesar’s. Some contemporary writers take a related view. Elizabeth Anscombe argues that the domain of authority is the domain of necessary social functions.