(facultas juridica) of another to compel anyone, but only the duties called legal duties. Similarly to all ethical obligation corresponds the notion of virtue, but it does not follow that all ethical duties are duties of virtue. Those, in fact, are not so which do not concern so much a certain end (matter, object of the elective will), but merely that which is formal in the moral determination of the will (e.g., that the dutiful action must also be done from duty). It is only an end which is also duty that can be called a duty of virtue. Hence there are several of the latter kind (and thus there are distinct virtues); on the contrary, there is only one duty of the former kind, but it is one which is valid for all actions (only one virtuous disposition).

The duty of virtue is essentially distinguished from the duty of