Brooks: The week that awoke the world

Over the last several years, that famous poem has been quoted countless times: “The centre cannot hold,” William Butler Yeats wrote, before adding, “The best lack all conviction, while the worst / Are full of passionate intensity.” People cited it so often because it was true. But it was not so true this past week. The events in Ukraine have been a moral atrocity and a political tragedy, but for people around the world, also a cultural revelation.