Scarcely a week passes but the press of our larger cities repeats the story of some overworked man or woman breaking completely down with general debility, the body not only a wreck, but too often the mind as well. Had that body been early shaped, and hardened, and made vigorous--as, for instance, Chief-justice Marshall's father looked to it that his great son's was--and the habit formed of taking daily work, and of the right sort to keep it so, and had the importance of that care been impressed on the mind till it had fixed itself as firmly as the sense of decency or the need of being clean, is it likely that the person would have allowed himself to get so run down, or, if he did, to remain so? The trouble usually is that the man does not know what to do to tone himself up and keep himself equal to his tasks, or that it needs but a little to effect this. He will spend money like water; he will travel fast and far; he will do almost anything, but he knows no certain cure. Is it not as important to have good health and strength as to figure or write correctly, to read the Æneids or Homer, to pick up a smattering of French or German? Who is the more likely, if his life be in-door and sedentary, not to live half his days--he who has never learned to build and strengthen his body, and keep it regulated and healthy, and to know the value of that health, or he who has? Is not work which will almost surely lengthen one's life, and increase his usefulness, worth doing, especially when it takes but a very little while daily to do it, and less yet when the habit commenced in childhood? Go through our public and private schools, and see how few thoroughly well-built boys and girls there are. Good points are not scarce, but how small the proportion of the deep-chested, the well-made and robust, who give good promise of making strong and healthy men and women! Fortunately there is nothing really difficult in the work of strengthening the weak, making the somewhat crooked straight, of symmetrizing the partially developed; indeed, on the other hand, it is, when once understood, simple, inexpensive, and easy. More than all this, it is a work which the teacher will find that almost every scholar will take hold of, not, as in many other branches, with reluctance, but with alacrity; and it is always pleasant teaching those who are eager to learn.