While the backwardness of social knowledge and art is of course connected with retarded knowledge of human nature, or psychology, it is also absurd to suppose that an adequate psychological science would flower in a control of human activities similar to the control which physical science has procured of physical energies. For increased knowledge of human nature would directly and in unpredictable ways modify the workings of human nature, and lead to the need of new methods of regulation, and so on without end. It is a matter of analysis rather than of prophecy to say that the primary and chief effect of a better psychology would be found in education. The growth and diseases of grains and hogs are now recognized as proper subjects of governmental subsidy and attention. Instrumental agencies for a similar investigation of the conditions which make for the physical and moral hygiene of the young are in a state of infancy. We spend large sums of money for school buildings and their physical equipment. But systematic expenditure of public funds for scientific inquiry into the conditions which affect the mental and moral development of children is just beginning, and demands for a large increase in this direction are looked upon askance. Again, it is reported that there are more beds in hospitals and asylums for cases of mental disturbance and retardation than for all diseases combined. The public pays generously to take care of the results of bad conditions. But there is no comparable attention and willingness to expend funds to investigate the causes of these troubles. The reason for these anomalies is evident enough. There is no conviction that the sciences of human nature are far enough advanced to make public support of such activities worth while. A marked development of psychology and kindred subjects would change this situation. And we have been speaking only of antecedent conditions of education. To complete the picture we have to realize the difference which would be made in the methods of parents and teachers were there an adequate and generally shared knowledge of human nature. But such an educational development, though intrinsically precious to the last degree, would not entail a control of human energies comparable to that which already obtains of physical energies. To imagine that it would is simply to reduce human beings to the plane of inanimate things mechanically manipulated from without; it makes human education something like the training of fleas, dogs and horses. What stands in the way is not anything called “free-will,” but the fact that such a change in educational methods would release new potentialities, capable of all kinds of permutations and combinations, which would then modify social phenomena, while this modification would in its turn affect human nature and its educative transformation in a continuous and endless procession.