Let us for a moment imagine Thucydides face to face with the problems of our post-war world of to-day. We have only to read his immortal analysis of the war-mood of Greece, and of the nervous and emotional phenomena which accompanied it, to realize that his first effort would have been to explain us to ourselves. He would not allow us to acquiesce idly in our vague disillusionment, our impatience of foreigners, our suspicion of the idealisms of the Wilson brand. He would trace our discontent ruthlessly to its sources and hold up to our eyes the strange compound of sorrow and fatigue, impatience and disappointment, aspiration and helplessness which makes us what we are. 'The war-mood brought with it many and terrible symptoms such as have occurred and will always continue to occur, so long as human nature remains what it is; though in a severer or milder form, according to the variety of the particular cases.' Thucydides would have had eyes for it in all its forms, mild or severe, simple or complex, pitiful or repulsive. He would show us the English upper and middle class, shaken out of its comfort and complacency, its easy and patronizing security, by the shock of war and bereavement, facing a future of unknown and terrifying ideas and forces, with the brutal tax-gatherer administering the _coup de grâce_ to its equanimity: the working class, called to fight for a cause which it but dimly understood, in the hope of a new world which victory was to call into being, exhorted by the nation's leaders to be as daring in its home policies as in the trenches, and then confronted with a world of failing markets and impoverished customers and with the full rigour of the merciless laws of supply and demand which, just because it had wished them out of existence, it had grown accustomed to believe could be ignored, oscillating, according to age, temperament or experience, between resignation and impotent fury, between old-fashioned trade-unionism and the latest fashion in extremism: France, emerging nerve-racked from a fifty years' obsession and a five years' nightmare, half-dead with sorrow and suspense, yet too proud in victory to own her weakness, looking round, half-defiant, half-wistful, among her allies for one who can understand her unspoken need, and longing, with all the intensity of her sensitive nature, to be able to resume, in security and quietness of mind, the arts and activities of normal life in which she has been, and will be again, the Athens of the modern world: Germany, tougher in fibre than her western neighbour yet equally shaken and exhausted: a land of sheep without a shepherd, rushing hither and thither seeking for a direction and a _Weltanschauung_, her amazing powers of industry and concentration and her rich and turbid life of feeling running to waste for lack of channelled guidance: Belgium, self-confident, industrious and rejuvenated: Italy, made one at last and