Indeed, it is no accident that Henry Kissinger’s masterpiece, A World Restored, was devoted to the study of the recreation of the world order by the Vienna Congress after the rupture of the French Revolution, followed by the Napoleonic adventures. Is it more difficult to predict, and adjust to, the coming of a fundamental change, than to defend the present order, under the motto of “the devil you know is always preferable to the devil you don’t know!”