 is that some men die and others are born—that lives succeed each other. All human life, in its very essence, is enclosed in between other lives which came before or which are to come after—it proceeds out of one life and goes into one which is to follow. Well then, it is on this most fundamental fact that I establish the inevitable necessity of change in the structure of the world…. This is not to say, heedlessly, that the youth of today—that is, his soul and his body—is different from the youth of yesterday; but it is inevitable that his life should have a different framework than that of yesterday.