IGNORANCE being darkness, what we need is intellectual light. The most important things to teach, as the basis of all progress, are that the universe is natural; that man must be the providence of man; that, by the development of the brain, we can avoid some of the dangers, some of the evils, overcome some of the obstructions, and take advantage of some of the facts and forces of nature; that, by invention and industry, we can supply, to a reasonable degree, the wants of the body, and by thought, study and effort, we can in part satisfy the hunger of the mind. Man should cease to expect any aid from any supernatural source. By this time he should be satisfied that worship has not created wealth, and that prosperity is not the child of prayer. He should know that the supernatural has not succored the oppressed, clothed the naked, fed the hungry, shielded the innocent, stayed the pestilence, or freed the slave. Being satisfied that the supernatural does not exist, man should turn his entire attention to the affairs of this world, to the facts in nature. And, first of all, he should avoid waste--waste of energy, waste of wealth. Every good man, every good woman, should try to do away with war, to stop the appeal to savage force. Man in a savage state relies upon his strength, and decides for himself what is right and what is wrong. Civilized men do not settle their differences by a resort to arms. They submit the quarrel to arbitrators and courts. This is the great difference between the savage and the civilized. Nations, however, sustain the relations of savages to each other. There is no way of settling their disputes. Each nation decides for itself, and each nation endeavors to carry its decision into effect. This produces war. Thousands of men at this moment are trying to invent more deadly weapons to destroy their fellow-men. For eighteen hundred years peace has been preached, and yet the civilized nations are the most warlike of the world. There are in Europe to-day between eleven and twelve millions of soldiers, ready to take the field, and the frontiers of every civilized nation are protected by breastwork and fort. The sea is covered with steel clad ships, filled with missiles of death. The civilized world has impoverished itself, and the debt of Christendom, mostly for war, is now nearly thirty thousand million dollars. The interest on this vast sum has to be paid; it has to be paid by labor, much of it by the poor, by those who are compelled to deny themselves almost the necessities of life. This debt is growing year by year. There must come a change, or Christendom will become bankrupt.