No institution inspired by fear can further life. Hope, not fear, is the creative principle in human affairs. All that has made man great has sprung from the attempt to secure what is good, not from the struggle to avert what was thought evil. It is because modern education is so seldom inspired by a great hope that it so seldom achieves a great result. The wish to preserve the past rather than the hope of creating the future dominates the minds of those who control the teaching of the young. Education should not aim at a passive awareness of dead facts, but at an activity directed towards the world that our efforts are to create. It should be inspired, not by a regretful hankering after the extinct beauties of Greece and the Renaissance, but by a shining vision of the society that is to be, of the triumphs that thought will achieve in the time to come, and of the ever-widening horizon of man’s survey over the universe. Those who are taught in this spirit will be filled with life and hope and joy, able to bear their part in bringing to mankind a future less somber than the past, with faith in the glory that human effort can create. VI MARRIAGE AND THE POPULATION QUESTION The influence of the Christian religion on daily life has decayed very rapidly throughout Europe during the last hundred years. Not only has the proportion of nominal believers declined, but even among those who believe the intensity and dogmatism of belief is enormously diminished. But there is one social institution which is still profoundly affected by the Christian tradition—I mean the institution of marriage. The law and public opinion as regards marriage are dominated even now to a very great extent by the teachings of the Church, which continue to influence in this way the lives of men, women, and children in their most intimate concerns. It is marriage as a political institution that I wish to consider, not marriage as a matter for the private morality of each individual. Marriage is regulated by law, and is regarded as a matter in which the community has a right to interfere. It is only the action of the community in regard to marriage that I am concerned to discuss: whether the present action furthers the life of the community, and if not, in what ways it ought to be changed.