The rules we have wittingly or unwittingly broken are often unknown to us, but they exist in the All-Wise Providence, and we may guess by our own suffering how far we have overstepped them. If a man runs into a door in the dark, we know all about that,--the case is simple,--but if he runs overtime at his office and hastens to be rich with the result of a nervous dyspepsia--that is a mystery. Here is a girl who "came out" last year. She was apparently strong and her mother was ambitious for her social progress. That meant four nights a week for several months at dances and dinners, getting home at 3 A.M. or later. It was gay and delightful while it lasted, but it could not last, and the girl went to pieces suddenly; her back gave out because it was not strong enough to stand the dancing and the long-continued physical strain. The nerves gave out because she did not give her faculties time to rest, and perhaps because of a love affair that supervened. The result was a year of invalidism, and then, because the rules of recovery were not understood, several years more of convalescence. Such common rules should be well enough understood, but they are broken everywhere by the wisest people. The common case of the broken-down school teacher is more unfortunate. This tragedy and others like it are more often, I believe, due to unwise choice of profession in the first place. The women's colleges are turning out hundreds of young women every year who naturally consider teaching as the field most appropriate and available. Probably only a very small proportion of these girls are strong enough physically or nervously to meet the growing demands of the schools. They may do well for a time, some of them unusually well, for it is the sensitive, high-strung organism that is appreciative and effective. After a while the worry and fret of the requirements and the constant nag of the schoolroom have their effect upon those who are foredoomed to failure in that particular field. The plight of such young women is particularly hard, for they are usually dependent upon their work.