The essence of religion is sacrifice. St. Paul summed it up in his own inimitable fashion when he said, "I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service." The supreme exercise of religious feeling is the readiness to make sacrifices because one feels that it is the will of the Deity that they should be made. The "Century Dictionary's" definition of sacrifice, "the giving up of some prized or desirable thing in behalf of a higher object", represents the state of mind that one must have if one is desirous of practicing religion sincerely. The tendency to make sacrifices seems almost to be ingrained in humanity and to be a sort of instinct. It is one of these precious manifestations of nature so difficult to understand and yet representing some great basic principle of humanity. The feeling of satisfaction that comes with it represents that compensation for the exercise of a natural function which so often accompanies natural processes and is sometimes supposed to be a feature only of the physical yet is so invariably found also in the moral order. From the very earliest times men have made sacrifices in the spirit of religion. Now that the story of the cave man is known not by inference but by actual discovery {60} of his remains in the caves of western France and northern Spain, we find that he was an artist who invented oil colors, grinding the oxides of manganese and of iron in mortars and mixing them with the rendered fat of animals and painting some of the most vivid pictures of animals that have ever been made on the walls of his cave in order to make his home beautiful. Instead of being just a little better than the beasts, he was an artist, and an artist is at all times the flower of our civilization, ahead of and not behind the rest of the race. In the tombs of the cave men finely made tools have been found buried with the bodies, demonstrating the belief in a hereafter and the readiness of those who were left behind to make sacrifices for their dead. For these tools had been produced at the cost of no little labor, and in the values of the time were precious. In order that their dead friend might be happy in another world they were quite willing to make these sacrifices and to devote other efforts to securing happiness for him. They devoted a good deal of care to the disposal of the body and even buried red coloring matter with the remains so that their dead friend might not look too pale in the next world and perhaps be the subject of remark, because of that. We rouge our corpses in our time again, but with the idea of making them presentable for this world.