Thomas Aquinas

==== Usury ====
The [[Second Lateran Council]] called the practice of loaning money "detestable and shameful... insatiable rapacity of money lenders, forbidden both by divine and human laws throughout the Old and New Testament, we condemn, and separate from the ecclesiastical consolation".<ref>{{Cite web |title=Denzinger EN 712 |url=http://www.clerus.org/bibliaclerusonline/en/dwy.htm |access-date=30 August 2022 |website=www.clerus.org}}</ref> The [[Fifth Lateran Council]] defined [[usury]] as "when, from its use, a thing which produces nothing is applied to the acquiring of gain and profit without any work, any expense or any risk".<ref>{{Cite web |title=The Red Herring of Usury |url=https://www.catholic.com/magazine/print-edition/the-red-herring-of-usury |access-date=30 August 2022 |website=Catholic Answers}}</ref>

Thomas Aquinas also wrote extensively on [[usury]], that is, the lending of money with interest. He condemned its practice: "to take usury for money lent is unjust in itself, because this is to sell what does not exist, and this evidently leads to inequality which is contrary to justice".<ref>{{Cite book |title=Summa Theologica |author=Thomas Aquinas |publisher=English Dominican Fathers |year=1981 |location=New York |pages=II-II, Q78, A1}}</ref> Money, and other similar goods, are consumed only when they are used. Charging a premium for money lent is a charge for ''more'' than the use of the good. Thus, Thomas Aquinas concluded that the lender is charging for something not his own, in other words, not rendering to each his due.