It is claimed by Christian historians that the religion of a nation was sometimes suddenly changed, and that millions of Pagans were made into Christians by the command of a king. Philosophers do not agree with these historians. Names have been changed, altars have been overthrown, but opinions, customs and beliefs remained the same. A Pagan, beneath the drawn sword of a Christian, would probably change his religious views, and a Christian, with a scimitar above his head, might suddenly become a Mohammedan, but as a matter of fact both would remain exactly as they were before--except in speech. Belief is not subject to the will. Men think as they must. Children do not, and cannot, believe exactly as they were taught. They are not exactly like their parents. They differ in temperament, in experience, in capacity, in surroundings. And so there is a continual, though almost imperceptible change. There is development, conscious and unconscious growth, and by comparing long periods of time we find that the old has been almost abandoned, almost lost in the new. Men cannot remain stationary. The mind cannot be securely anchored. If we do not advance, we go backward. If we do not grow, we decay. If we do not develop, we shrink and shrivel. Like the most of you, I was raised among people who knew--who were certain. They did not reason or investigate. They had no doubts. They knew that they had the truth. In their creed there was no guess--no perhaps. They had a revelation from God. They knew the beginning of things. They knew that God commenced to create one Monday morning, four thousand and four years before Christ. They knew that in the eternity--back of that morning, he had done nothing. They knew that it took him six days to make the earth--all plants, all animals, all life, and all the globes that wheel in space. They knew exactly what he did each day and when he rested. They knew the origin, the cause of evil, of all crime, of all disease and death. They not only knew the beginning, but they knew the end. They knew that life had one path and one road. They knew that the path, grass-grown and narrow, filled with thorns and nettles, infested with vipers, wet with tears, stained by bleeding feet, led to heaven, and that the road, broad and smooth, bordered with fruits and flowers, filled with laughter and song and all the happiness of human love, led straight to hell. They knew that God was doing his best to make you take the path and that the Devil used every art to keep you in the road. They knew that there was a perpetual battle waged between the great Powers of good and evil for the possession of human souls. They knew that many centuries ago God had left his throne and had been born a babe into this poor world--that he had suffered death for the sake of man--for the sake of saving a few. They also knew that the human heart was utterly depraved, so that man by nature was in love with wrong and hated God with all his might.