The principle of free speech demands we allow protests to take place on college campuses. But must we merely tolerate campus demonstrations, or do we have some deeper stake in allowing them to continue—even when they are loud, impulsive, and irritating to the surrounding society? That question goes to the heart of universities’ civic mission: We should want our colleges to educate citizens who will be not only skillful thinkers, listeners, and speakers but also engaged proponents of this