Whatever we are trying to do, we need a sound imagination and judgment, and lack of these enters into nearly all cases of inefficacy and failure. If a machinist, let us say, understands as a whole the piece of work upon which he is engaged, he can do his part intelligently, adaptively, and with a sense of power; and in so far is a successful man. He serves well and develops himself. If, beyond this, he has the mind to grasp as a whole the work of some department of the shop, so as to see how it ought to go, if he has also the understanding of men, based on imagination, which enables him to select and guide them; he is fit to become a foreman. Similar powers of a larger range make a competent superintendent. And so with social functions in general, large or small. A good President of the United States is, first of all, one who has the constructive social imagination to grasp, in its main features, the real situation of the country, the vital problems, the significant ideas and men, the deep currents of sentiment. Without this there can be no real leader of the people. Likewise each of us has an ever-changing social situation to deal with, and will succeed as he can understand and co-operate with it. A good administrative mind is a place where the organization of the world goes on. It is the centre of the social process, where choices are made and men and things assigned to their functions. I have found it a main difference among men, and one not easy to discern until you have observed them for some time, that some have a constructive mind and some have not. One whom I think of has a remarkably keen and independent intellect, and is not at all lacking in ambition and self-assertion. Those who know him well have expected that he would do remarkable things, and the only reason why he has not, that I can see, is that his ideas do not seem to undergo the unconscious gestation and organization required to make them work. There is something obscurely sterile about him. On the other hand, I have known a good many young men, not particularly promising, who have gradually forged ahead just because their conceptions, though not brilliant, seemed to have a certain native power of growth, like that of a sound grain of corn. All life is an inscrutable and mainly unconscious growth, and it is thus with that share of it that belongs to each of us. Among the more aggressive traits that enter into success I might specify courage, initiative, resolution, faith, and composure. These are required in undertaking and carrying through the hazardous enterprises of which every significant life must consist.