Universities can’t withstand mobs, as countless assaults have proven. I’ve lived through two: at Washington University in St. Louis, in 1968, and then about a decade later at the University of Rome. In the summer of ’68 I saw a good deal of the French “Revolution,†which took over most of Paris for a week or so. Its headquarters were at the Sorbonne. It’s in the nature of campus revolts that the leaders aren’t going to be satisfied with limited reforms to the school; they are inspired by inflated rhetoric, and they see themselves at the center of a great...