Taken as a whole, the wars fought in the nineteenth century, wars of nationality, of independence, of unity, even colonial wars, were of a character far less odious than that of the great conflict which has devastated Europe and upset the economic conditions of the world. It has not only been the greatest war in history, but in its consequences it threatens to prove the worst war which has ravaged Europe in modern times. After nearly every nineteenth-century war there has been a marked revival of human activity. But this unprecedented clash of peoples has reduced the energy of all; it has darkened the minds of men, and spread the spirit of violence. Europe will be able to make up for her losses in lives and wealth. Time heals even the most painful wounds. But one thing she has lost which, if she does not succeed in recovering it, must necessarily lead to her decline and fall: the spirit of solidarity. After the victory of the Entente the microbes of hate have developed and flourished in special cultures, consisting of national egotism, imperialism, and a mania for conquest and expansion. The peace treaties imposed on the vanquished are nothing but arms of oppression. What more could Germany herself have done had she won the War? Perhaps her terms would have been more lenient, certainly not harder, as she would have understood that conditions such as we have imposed on the losers are simply inapplicable. Three years have elapsed since the end of the War, two since the conclusion of peace, nevertheless Europe has still more men under arms than in pre-war times. The sentiment of nationality, twisted and transformed into nationalism, aims at the subjugation and depression of other peoples. No civilized co-existence is possible where each nation proposes to harm instead of helping its neighbour. The spread of hatred among peoples has everywhere rendered more difficult the internal relations between social classes and the economic life of each country. Fearing a repetition of armed conflicts, and owing to that spirit of unrest and intolerance engendered everywhere by the War, workers are becoming every day more exacting. They, too, claim their share of the spoils; they, too, clamour for enemy indemnities. The same manifestations of hate, the same violence of language, spread from people to people and from class to class. This tremendous War, which the peoples of Europe have fought and suffered, has not only bled the losers almost to death, but it has deeply perturbed the very life and existence of the victors. It has not produced a single manifestation of art or a single moral affirmation. For the last seven years the universities of Europe appear to be stricken with paralysis: not one outstanding personality has been revealed.