Critics of higher education who say American colleges do not prepare students for life after graduation may be way off base: Among federal judges, the problem may be that they do try to apply their education to the post-graduate day jobs that they hold. “At a seminar for federal judges in Kansas City, one of the more conservative judges said, ‘Isn’t it a shame that people don’t know the five rights in the first amendment,’” historian John Kaminski remembered in a recent forum at the Cato Institute. “One of the more activist judges said, ‘Five rights, I’ve been giving 25...