DANIEL SHUCHMAN: Free Thought Under Siege: The battle over microaggressions going on at our universities is both a symptom and a cause of malaise and strife in society at large.

Rancorous trends such as microaggressions, safe spaces, trigger warnings and intellectual intolerance have taken hold at universities with breathtaking speed. Last year’s controversy over Halloween costumes at Yale led to the departure of two respected faculty members, and this year made the fall festival a flashpoint of conflict at campuses across the country. The recent explosion in the number of university administrators, coupled with an environment of perpetual suspicion—the University of Florida urges students to report on one another to its “Bias Education and Response Team”—drives students who need to resolve normal tensions in human interaction to instead seek intervention by mediators, diversity officers, student life deans or lawyers.

As Frank Furedi compellingly argues in this deeply perceptive and important book, these phenomena are not just harmless fads acted out by a few petulant students and their indulgent professors in an academic cocoon. Rather, they are both a symptom and a cause of malaise and strife in society at large. At stake is whether freedom of thought will long survive and whether individuals will have the temperament to resolve everyday social and workplace conflicts without bureaucratic intervention or litigation. . . .

Throughout history, the impulse to censorship has been driven by political or religious zealotry. In the 21st century, Mr. Furedi posits, speech suppression has assumed the mantle of mental-health therapy. But policing actual speech and books is not sufficient. In today’s environment, no matter what you say, it is exclusively the “individual who is hurt or offended . . . who decides what you really meant.” Thus people’s inner lives and imputed motivations, even unconscious ones, have become “legitimate terrain for intervention” by authorities. In an unprecedented twist, students themselves are agitating for the imposition of campus thought control.

Academic freedom is not an academic matter, Mr. Furedi reminds us. It “has a vital significance for the quality of public life.”

He’s reviewing Frank Furedi’s What’s Happened To The University?: A sociological exploration of its infantilisation.

And yes. If academia itself is insufficiently committed to free speech and inquiry, then the larger society must step in.