A Japanese woman living in California attempts parent-child suicide, an ancient Japanese custom called “oyako-shinju,” in order to rid herself of shame upon learning that her husband has a mistress. She survives, but her two children are drowned in the attempt. Since her attempt was made in accordance with the standards of Japanese culture, should she be tried by the standards and laws of the United States? Are there universally valid moral principles that dictate what is right? Or are moral judgments culturally relative, ultimately dictated by conventions and practices that vary among societies? In Practices and Principles, Mark Tunick takes up the debate between universalists and relativists, and, in political philosophy, between communitarians and liberals, each of which has roots in an earlier debate between Kant and Hegel.