Recent theories on cognitive science have stressed the significance of moral intuition as a counter to and complementary part of moral reasoning in decision making. Thus, the aim of this paper is to create an integrated framework that can account for both intuitive and reflective cognitive processes, in order to explore the antecedents of ethical decision making. To do that, we build on Scholasticism, an important medieval school of thought from which descends the main pillars of the modern Catholic social (...) doctrine. Particularly, the focus will be on the scholastic concept of synderesis, which is an innate human faculty that constantly inclines decision makers toward universal moral principles. Managerial implications are discussed, stressing how a rediscovery of decision makers’ intuitive moral judgments could be relevant in the reflective thinking practice of managers’ ethical reasoning, thus saving them from rational insensitivity to ethical dilemmas. (shrink)