Foot and the Fat Man, Terrible Trolleys, and Threatening Tyrants

According to the Stanford Encyclopedia of Philosophy, Thomas Aquinas is credited with introducing the principle of double effect in his discussion of the permissibility of self-defense in the Summa Theologica (II-II, Qu. 64, Art.7). Aquinas was struggling to reconcile the law of בא במחתרת with various Christian teachings that seem to forbid homicidal self-defense, as […]