Success of this sort meets another common-sense test in that it usually gives the maximum influence over others of which one is capable. People do not influence us in proportion to their external power, but in proportion to what we feel to be their intrinsic significance for life; their ideals, their fidelity to them, their love, courage, and hope. And one who gives himself heartily to the highest service he feels competent to, will attain his maximum significance. Success, then, is a matter of effective participation in the social process; and to get a clearer idea of it we may well consider further what the latter calls for. The organization of society has two main aspects, that of unity and that of differentiation, the aspect of specialized functions and the aspect of a total life for which these functions co-operate. The life of the individual, if it is to be one with that of society, must share in these aspects, must have a specialized development and at the same time a unifying wholeness. He must be able, by endowment and training, to do well some one kind of service, as carpentry, let us say, or farming, or banking; and must also have a breadth of personality which participates largely in the general life and makes him a good citizen. The social process is like a play in that no actor can do his own part well except as he enters into the spirit of the whole: he must be a true member, the organization needs to be alive in every part. A nation is a poor thing unless the citizen is a patriot, entering intelligently into its spirit and aims, and the principle applies in various manners and degrees to a community, a shop, a school—any whole in which one may share. If one thinks of the human process at large, with its onward striving, its experimentation, its conflicts and co-operations, its need for foresight and for unity of spirit; and then asks what kind of an individual it takes to do his full part in such a process, he will be on the track of the secret of personal success. It calls for energy and initiative, because these are the springs of the process; self-reliance and tenacity, because these are required to discover and develop one’s special function; sympathy and adaptability, because they enable one to work his function in with the movement as a whole. And intelligence is needed everywhere, in order that his mind may reflect and anticipate the process, and so share effectively in it.