"We can speak with greater certainty as to the remoter future than we can with regard to that which is more immediately impending. The study of the earlier ages of humanity and a comparison of their conditions with the state of affairs at the present day shows us quite clearly the direction in which evolution is moving; so that there can be no question that after a certain considerable lapse of time qualities which are now only just beginning to dawn will be fully developed, and all the conditions of society will be radically changed thereby."