Justice is the steady and lasting willingness to give to others what they are entitled to (their right: jus [or ius] suum). Aquinas works with this Roman Law definition (ST II-II q. 58 a. 1c), and with Aristotle’s division of justice into (i) distributive (good judgment about how to divide up and parcel out beneficial or burdensome wholes or sets in a way that is fair because guided by appropriate criteria) and (ii) what Aquinas calls commutative justice (good judgment going far wider than Arist