On the cover of The Spectator for 17 February is an arresting photograph of a woman staring—worriedly, we think—out of that little headdress slit that traditionalist Muslims regard as the only seemly point of female contact with the world at large. The image illustrates “Why Can’t We All Just Get Along?,” an essay by the political philosopher—according to The Spectator, “Britain’s foremost political philosopher”—John Gray. We have had occasion to comment on John Gray in this space before. Whether he is Britain’s “foremost political philosopher” is something that might give pause to Kenneth Minogue, Roger Scruton, and quite a few other contenders for that title. But Mr. Gray is indisputably among Britain’s wooliest, most platitudinous political philosophers. He made his reputation a couple of decades ago as a maverick (i.e., inconsistent) conservative, pontifi ...