I believe that this education process has two sides-one psychological and one sociological, and that neither can be subordinated to the other or neglected without evil results following. In order to know what a power really is we must know what its end, use, or function is; and this we cannot know save as we conceive of the individual as active in social relationships. To prepare him for the future life means to give him command of himself; it means so to train him what he will have the full and ready use of all his capacities; that his eye and ear and hand may be tools ready to command, that his judgment may be capable of grasping the conditions under which it has to work, and the executive forces be trained to act economically and efficiently. In sum, I believe that the individual who is to be educated is a social individual and that society is an organic union of individuals. Education, therefore, must begin with a psychological insight into the child’s capacities, interests, and habits. It must be controlled at every point by reference to these same considerations.