The present outlook of human affairs is one that admits of broad generalizations and that seems to require broad generalizations. We are in one of those phases of experience which become cardinal in history. A series of immense and tragic events have shattered the self-complacency and challenged the will and intelligence of mankind. That easy general forward movement of human affairs which for several generations had seemed to justify the persuasion of a necessary and invincible progress, progress towards greater powers, greater happiness, and a continual enlargement of life, has been checked violently and perhaps arrested altogether. The spectacular catastrophe of the Great War has revealed an accumulation of destructive forces in our outwardly prosperous society, of which few of us had dreamt; and it has also revealed a profound incapacity to deal with and restrain these forces. The two years of want, confusion, and indecision that have followed the Great War in Europe and Asia, and the uncertainties that have disturbed life even in the comparatively untouched American world, seem to many watchful minds even more ominous to our social order than the war itself.