Why do I take so trivial and specific a case as this? Because I can remember several cases where I could not possibly leave out nagging when I came to make my social diagnosis. It was one of the chief factors. One cures this disease, in case one does help it at all, by making the nagging person conscious of what it is that he is doing. The nagging impulse is like an itch. _It recurs and scratching does not stop it._ The nagger does not know quite why he does it; he finds himself doing it almost in his sleep. Hence we try to wake him up, to make him conscious, if we can, of his foolishness, of the kind of harm he is doing, and of the degree of incurability he is inducing in the person whom he is trying to cure. I will now sum up the last four chapters in a diagram which we have used in Boston at the Massachusetts General Hospital to assist us in making our social diagnoses. A social diagnosis can very seldom be made in one word, such as _idiocy_ or _tramp_. It must include the patient's physical state. It must summarize a person's physical, moral, and economic needs. Our best social diagnoses, such as _idiocy_ or _feeble-mindedness_, do not refer to the mind only. They refer to the body just as much. Feeble-mindedness is a statement about the child's body, his brain, his voracious appetite, the diseases to which he is likely to succumb, his extraordinary susceptibility to cold, and his poor chances of growing up. One says a great deal about the physical side of a child as soon as one pronounces the word "feeble-minded." Also one says a great deal about his financial future. One knows that the feeble-minded child will never rise beyond a very low point in the economic scale. One says also a great deal about his moral future. We all know to what sexual dangers and temptations he is especially exposed. And on the purely psychological side one can predict his entire unteachability beyond a perfectly definite limit. All this is given in the medical-social diagnosis, "feeble-mindedness." This is an example, then, of an ideally complete and compact, though a very sad, social diagnosis. It is almost the only good one we have worked out as yet. The only other is "tramp." The tramp in a technical sense is a person who has what the Germans call "Wanderlust." He is unable to stay in one place. Perpetually or periodically he desires to move and to keep moving. The tramp is a medical-social entity. He has certain physical limitations, certain economic limitations, certain moral deficiencies. But in America he is rather a rare being. One does not see many typical tramps here. Since few social (or medical-social) diagnoses can be stated in a single word, one is usually forced to write down one's diagnosis in a great many different items. As a guide I made four years ago a schedule for our use at the Massachusetts General Hospital. Use--the only test for that sort of thing--has shown this schedule to be of some value.