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260 passes easily into the other, according to the accidents of circumstance and opportunity. The genesis of impulses and the causes which make them change ought to be studied; education and social institutions ought to be made such as to strengthen the impulses which harmonize in different men, and to weaken those that involve conflict. I have no doubt that what might be accomplished in this way is almost unlimited.

It is rather through impulse than through will that individual lives and the life of the community can derive the strength unity of a single direction. Will is of two kinds, of which one is directed outward and the other inward. The first, which is directed outward, is called into play by external obstacles, either the opposition of others or the technical difficulties of an undertaking. This kind of will is an expression of strong impulse or desire, whenever instant success is impossible; it exists in all whose life is vigorous, and only decays when their vital force is enfeebled. It is necessary to success in any difficult enterprise, and without it great achievement is very rare. But the will which is directed inward is only necessary in so far as there is an inner conflict of