This childish belief in myth is often curiously tenacious. A father was once surprised to find that his boy aged five years and ten months continued naïvely to believe in the real personality of Santa Claus. It was Christmastide and the father, in order to test the child’s credulity, put his own pocket-knife into the stocking which Santa Claus was supposed to fill. The child, though he knew his father’s knife very well, did not in the least suspect that the knife he found in the stocking had been placed there by human hands, but expressed himself as pleased that Santa Claus had sent him one like his father’s. When his father followed this up by telling him that he had lost his knife, and by searching for it in the boy’s presence, the latter asked whether Santa Claus had stolen the knife—thus showing how its close similarity to the knife he had received had impressed him, though he would not for a moment doubt the fact of its coming from the mysterious personage. It might be thought that this child was particularly stupid. On the contrary he was well above the average in intelligence. In proof of this I may relate that the Christmas before this, that is to say when he was under five years, he was the only one among thirty children who recognised his uncle when extremely well disguised as Father Christmas. When asked by his father why he thought it was his uncle, he said at first he didn’t know, but thinking a moment he added, “I don’t see who else there is,” showing that he had reasoned out his belief by a method of exclusion. Of course it will be said that I am here selecting exceptional cases of childish imagination. I am quite ready to admit the probability of this. The best examples of any trait of the young mind will obviously be supplied by those who have most of this trait. Yet I very much suspect that ordinary and even dull children are wont to hide away a good deal of such superstitious belief. “One of the greatest pleasures of childhood,” says Oliver Wendell Holmes in _The Poet of the Breakfast Table_, “is found in the mysteries which it hides from the scepticism of the elders and works up into small mythologies of its own.” I have treated the myths of children as a product of pure imagination, of the impulse to realise in vivid images what lies away from and above the world of sense. Yet, as we shall see later, they are really more than this. They contain, like the myths of primitive man, a true germ of thought.