Another instinct of the child is the use of pencil and paper. All children like to express themselves through the medium of form and color. If you simply indulge this interest by letting the child go on indefinitely, there is no growth that is more than accidental. But let the child first express his impulse, and then through criticism, question, and suggestion bring him to consciousness of what he has done, and what he needs to do, and the result is quite different. Here, for example, is the work of a seven-year-old child. It is not average work, it is the best work done among the little children, but it illustrates the particular principle of which I have been speaking. They had been talking about the primitive conditions of social life when people lived in caves. The child’s idea of that found expression in this way: the cave is neatly set up on the hillside in an impossible way. You see the conventional tree of childhood—a vertical line with horizontal branches on each side. If the child had been allowed to go on repeating this sort of thing day by day, he would be indulging his instinct rather than exercising it. But the child was now asked to look closely at trees, to compare those seen with the one drawn, to examine more closely and consciously into the conditions of his work. Then he drew trees from observation. Finally he drew again from combined observation, memory, and imagination. He made again a free illustration, expressing his own imaginative thought, but controlled by detailed study of actual trees. The result was a scene representing a bit of forest; so far as it goes, it seems to me to have as much poetic feeling as the work of an adult, while at the same time its trees are, in their proportions, possible ones, not mere symbols. If we roughly classify the impulses which are available in the school, we may group them under four heads. There is the social instinct of the children as shown in conversation, personal intercourse, and communication. We all know how self-centered the little child is at the age of four or five. If any new subject is brought up, if he says anything at all, it is: “I have seen that;” or, “My papa or mamma told me about that.” His horizon is not large; an experience must come immediately home to him, if he is to be sufficiently interested to relate it to others and seek theirs in return. And yet the egoistic and limited interest of little children is in this manner capable of infinite expansion. The language instinct is the simplest form of the social expression of the child. Hence it is a great, perhaps the greatest of all educational resources.