Philosophy
The Ethics of Punishment: Retributivism vs. Utilitarianism
Quick fact
The philosopher Immanuel Kant argued that even if a society were about to dissolve, the last murderer in prison must be executed—because justice requires it, regardless of any future benefit.
Why this is interesting
Imagine a thief steals a loaf of bread. Should he be punished because he deserves it, or because punishing him will prevent future crimes? The answer reveals a 2,000-year-old philosophical battle.