In all ages and nations positive morality has consisted almost wholly of prohibitions of various classes of actions, with the addition of a small number of commands to perform certain other actions. The Jews, for example, prohibited murder and theft, adultery and incest, the eating of pork and seething the kid in its mother’s milk. To us the last two precepts may seem less important than the others, but religious Jews have observed them far more scrupulously than what seem to us fundamental principles of morality. South Sea Islanders could imagine nothing more utterly wicked than eating out of a vessel reserved for the use of the chief. My friend Dr. Brogan made a statistical investigation into the ethical valuations of undergraduates in certain American colleges. Most considered Sabbath-breaking more wicked than lying, and extra-conjugal sexual relations more wicked than murder. The Japanese consider disobedience to parents the most atrocious of crimes. I was once at a charming spot on the outskirts of Kioto with several Japanese socialists, men who were among the most advanced thinkers in the country. They told me that a certain well beside which we were standing was a favorite spot for suicides, which were very frequent. When I asked why so many occurred they replied that most were those of young people in love whose parents had forbidden them to marry. To my suggestion that perhaps it would be better if parents had less power they all returned an emphatic negative. To Dr. Brogan’s undergraduates this power of Japanese parents to forbid love would seem monstrous, but the similar power of husbands or wives would seem a matter of course. Neither they nor the Japanese would examine the question rationally; both would decide unthinkingly on the basis of moral precepts learned in youth.