it provides the technique of social and moral engineering. When the consciousness of science is fully impregnated with the consciousness of human value, the greatest dualism which now weighs humanity down, the split between the material, the mechanical, the scientific and the moral and ideal will be destroyed. Human forces that now waver because of this division will be unified and reinforced. As long as ends are not thought of as individualized according to specific needs and opportunities, the mind will be content with abstractions, and the adequate stimulus to the moral or social use of natural science and historical data will be lacking. But when attention is concentrated upon the diversified concretes, recourse to all intellectual materials needed to clear up the special cases will be imperative. At the same time that morals are made to focus in intelligence, things intellectual are moralized. The vexatious and wasteful conflict between naturalism and humanism is terminated. These general considerations may be amplified. First: Inquiry, discovery take the same place in morals that they have come to occupy in sciences of nature. Validation, demonstration become experimental, a matter of consequences. Reason, always an honorific term in ethics, becomes actualized in the methods by which the needs and conditions, the obstacles and resources, of situations are scrutinized in detail, and intelligent plans of improvement are worked out. Remote and abstract generalities promote jumping at conclusions, "anticipations of nature." Bad consequences are then deplored as due to natural perversity and untoward fate. But shifting the issue to analysis of a specific situation makes inquiry obligatory and alert observation of consequences imperative. No past decision nor old principle can ever be wholly relied upon to justify a course of action. No amount of pains taken in forming a purpose in a definite case is final; the consequences of its adoption must be carefully noted, and a purpose held only as a working hypothesis until results confirm its rightness. Mistakes are no longer either mere unavoidable accidents to be mourned or moral sins to be expiated and forgiven. They are lessons in wrong methods of using intelligence and instructions as to a better course in the future. They are indications of the need of revision, development, readjustment. Ends grow, standards of judgment are improved. Man is under just as much obligation to develop his most advanced standards and ideals as to use conscientiously those which he already possesses. Moral life is protected from falling into formalism and rigid repetition. It is rendered flexible, vital, growing.