Summa Theologica

IIa IIae q. 108 : Of Vengeance (Four Articles)

[Letter] [A4] Entire question
[Letter] [A4] 1. Whether vengeance is lawful?
[Letter] [A4] 2. Whether vengeance is a special virtue?
[Letter] [A4] 3. Whether vengeance should be wrought by means of punishments customary among men?
[Letter] [A4] 4. Whether vengeance should be taken on those who have sinned involuntarily?