Each generation is perforce unjust towards its predecessors. "As the generations succeed one another, they become more strongly aware of the things which divide them than they are of the things which unite. They feel impelled to affirm the indispensability, the importance, of their own existence, even at the cost of injustice or falsehood to themselves." Like individual human beings, they have "an age when one must be unjust if one is to be able to live." They have to live out their own lives vigorously, asserting their own peculiarities in respect of ideas, forms, and civilization. It is just as little possible to them to be considerate towards later generations, as it has been for earlier generations to be considerate towards them. There prevails in this self-assertion the eternal law of the forest, where the young trees tend to push the earth away from the roots of the older trees, and to sap their strength, so that the living march over the corpses of the dead. The generations are at war, and each individual is unwittingly a champion on behalf of his own era, even though he may feel himself out of sympathy with that era. Jean Christophe, the young solitary in revolt against his time, was without knowing it the representative of a fellowship. In and through him, his generation declared war against the dying generation, was unjust in his injustice, young in his youth, passionate in his passion. He grew old with his generation, seeing new waves rising to overwhelm him and his work. Now, having gained wisdom, he refused to be wroth with those who were wroth with him. He saw that his enemies were displaying the injustice and the impetuosity which he had himself displayed of yore. Where he had fancied a mechanical destiny to prevail, life had now taught him to see a living flux. Those who in his youth had been fellow revolutionists, now grown conservative, were fighting against the new youth as they themselves in youth had fought against the old. Only the fighters were new; the struggle was unchanged. For his part, Jean Christophe had a friendly smile for the new, since he loved life more than he loved himself. Vainly does his friend Emmanuel urge him to defend himself, to pronounce a moral judgment upon a generation which declared valueless all the things which they of an earlier day had acclaimed as true with the sacrifice of their whole existence. Christophe answers: "What is true? We must not measure the ethic of a generation with the yardstick of an earlier time." Emmanuel retorts: "Why, then, did we seek a measure for life, if we were not to make it a law for others?" Christophe refers him to the perpetual flux, saying: "They have learned from us, and they are ungrateful; such is the inevitable succession of events. Enriched by our efforts, they advance further than we were able to advance, realizing the conquests which we struggled to achieve. If any of the freshness of youth yet lingers in