Success in either form of activity is dependent upon activity of the other kind. The man who teaches successfully finds that he at the same time systematizes his own knowledge, makes it available for his own purposes, and prepares himself for further learning. The woman who would have strong children seeks to increase her own physical vigor, and thus by work for others she secures the joys of health for herself. On the other hand, activity of one kind, at the expense of the other, tends not only to unbalance, but to narrow life. The mother who blindly performs unnecessary services for her child, and thus curtails her time for reading and study, runs the risk of becoming incapable of directing wisely the education of the child in later life. She not only unbalances her life by too much serving, but also narrows it by reducing her chances for continued usefulness. Breadth of life is dependent upon an equilibrium between the activities prompted by the self-regarding and those prompted by the other-regarding desires. The wish to find expression for peculiar talents is self-regarding. Occupations suited to talent, however, lead not only to pleasure in work, but to development and to increased power for usefulness; and while the interests of the well-balanced life may at any time demand the sacrifice of talents for the sake of work for others, those same interests demand just as imperiously that talents must not be unnecessarily sacrificed for the sake of purposeless serving. Upon woman’s opportunities for intensive cultivation of special talents, Nature has set a limitation by specializing her for childbearing. This limitation is probably not nearly so great as education and unhealthful living make it appear, but it does exist. Considered alone, it seems an unqualified disadvantage. Considered in connection with the fact that it brings the joys of motherhood and of usefulness to society, it appears to be a means for rounding out and broadening her life. To this limitation set by Nature to woman’s chances for individualizing herself, society has added another check by specializing her for housekeeping. Does this tend to unbalance and narrow her life, or to balance and broaden it? The answer to this question depends, first, upon whether she has talents which do not find expression in housekeeping; second, upon whether her specialization for housekeeping interferes with their use; and third, if it does interfere, upon whether the interference brings with it a compensating advantage. First, have women talents which do not find expression in housekeeping? That is easily answered. Women are successfully practicing medicine, nursing, teaching, and working at the various crafts. Society is showing its appreciation of their work by offering them employment in these various occupations.