Ludwig von Mises on Ethics
Ludwig von Mises maintains that there are two ways of looking at ethics: one is that ethics is about how each person can satisfy his personal preferences, and the other is that there is an objective law that dictates what people ought to do. Mises places almost all ethical systems except for utilitarianism, which he sometimes call eudaemonism, in the latter camp. These systems include natural law ethics, divine command ethics, and Kantian ethics. Natural law ethics says that human beings have a certain nature or essence that dictates what they ought to do.