Let's say a city wants to bring in laws: after 10 at night no woman may walk outside her home unless accompanied by her husband or male relative. Let's say some place wants to punish thieves by cutting off their hands, and punish adulterers with stoning. There will definitely be people who attack this fiercely, and there will also be those fiercely in favor—and the tricky question will finally arise: is it just? "Just"—it is a sound...