The Christians out-thought the pagan world. How could they fail to? "We have peace with God," said Paul. They moved about in a new world, which was their Father's world. They would go to the shrines and ask uncomfortable questions. Lucian, who was a pagan and a scoffer, said that on one side of the shrines the notice was posted: "Christians outside." The Christians saw too much. The living god in that shrine was a big snake with a mask tied on--good enough for the pagan; but the Christian would see the strings. Even the daemons they dismissed to irrelevance and non-entity. The essence of magic was to be able to link the name of a daemon with the name of one's enemy, to set the daemon on the man. "Very well," said the Christian, "link my name with your daemons. Use my name in any magic you like. There is a name that is above every name; I am not afraid." That put the daemons into their right place, and by and by they vanished, dropped out, died of sheer inanition and neglect. Wherever Jesus Christ has been, the daemons have gone. "There used to be fairies," said an old woman in the Highlands of Scotland to a friend of mine, "but the Gospel came and drove them away." I do not know what is going to keep them away yet but Jesus Christ. The Christian read the ancient literature with the same freedom of mind, and was not in bondage to it; he had a new outlook; he could criticize more freely. One great principle is given by Clement of Alexandria: "The beautiful, wherever it is, is ours, because it came from our God." The Christian read the best books, assimilated them, and lived the freest intellectual life that the world had. Jesus had set him to be true to fact. Why had Christian churches to be so much larger than pagan temples? Why are they so still? Because the sermon is in the very centre of all Christian worship--clear, definite Christian teaching about Jesus Christ. There is no place for an ignorant Christian. From the very start every Christian had to know and to understand, and he had to read the Gospels; he had to be able to give the reason for his faith. He was committed to a great propaganda, to the preaching of Jesus, and he had to preach with penetration and appeal. There they were loyal to the essential idea of Jesus--they were "sons of fact." They read about Jesus,[32] and they knew him, and they knew where they stood. This has been the essence of the Christian religion. Put that alongside of the pitiful defence which Plutarch makes of obscene rites, filthy images, foolish traditions. Who did the thinking in that ancient world? Again and again it was the Christian. He out-thought the world.