Chapter IV: Concerning the Division of Justice

248. Justice is divided into various parts. — In the virtues, especially the cardinal virtues, integral, subjective, and potential parts are distinguished. They are called integral by similitude to the integral parts of a body, without which the body is not perfect, and therefore they are conditions, acts, dispositions, without which the act or use of some virtue is not perfect. — Subjective parts are those into which virtue is divided as a genus into species. — Potential parts are so called by similitude to the powers of the soul, which have power from the soul but not its whole power; and therefore they are habits which agree in some respect with a cardinal virtue, but in another respect fall short of its perfect notion. They are also called annexed virtues, in which the proper notion of some virtue is present in some way, but deficiently.

Which these various parts are for the virtue of justice must now be declared.