In primitive times people saw each other rarely and had much less to do with each other. The human element was then not the chief problem. Their environmental problems had to do with such things as the elements, violent storms, extremes of heat and cold, darkness, the ever-present menace of wild beasts whose flesh was their food, yet who would eat them first unless they were quick in brain and body. But all that is changed. Man has subjugated all other creatures and now walks the earth its supreme sovereign. He has discovered and invented and builded until now we live in skyscrapers, talk around the world without wires and by pressing a button turn darkness into daylight. Yet with all our knowledge of the outside world ninety-nine lives out of every hundred are comparative failures. The reason is plain to every scientific investigator. We have failed to study ourselves in relation to the great environmental problem of today. The stage-setting has been changed but not the play. The game is the same old game—you must adjust and adapt yourself to your environment or it will destroy you.