The child and the man, being both human, would be united by the brotherhood of men; and the brotherhood of men is even nobler when it bridges the abyss of ages than when it bridges only the chasm of class. But anyhow he would see no evidence of the cave-man of crude evolutionism; because there is none to be seen. If somebody told him that the pictures had all been drawn by St. Francis of Assisi out of pure and saintly love of animals, there would be nothing in the cave to contradict it.