 The best developed part of Aquinas’ political theory is his account of law. That account’s main features may be summarized in four propositions about the central case and focal meaning of law. It is a matter of intelligent direction addressed to the intelligence and reason of those whom it directs. It is for the common good of a political community. It is made (positum, put in place) by the ruler(s) responsible for the community in question. It needs to be coercive.