disease.

This is one of those assertions which cannot be answered in a sentence. Concentrated within the briefest expression it comes to this, that mental labor cannot produce disease, but may aggravate the consequences of disease which already exists.

The difficulty of testing this is obvious; for so long as health remains quite perfect, it remains perfect, of course, whether the brain is used or not; and when failure of health becomes manifest, it is not always easy to decide in what degree mental labor may have been the cause of it. Again, the accuracy of so general a statement cannot be proved by any number of instances in its favor, since it is universally admitted that brain-work is not the only cause of disease, and no one affirms that it is more than one amongst many causes which may impede the bodily functions.

When the poet Wordsworth was engaged in composing the “White Doe of Rylstone,” he received a wound in his foot, and he observed that the continuation of the literary labor increased the irritation of the wound; whereas by suspending his work he could diminish it, and absolute mental rest produced a perfect cure. In connection with this incident he remarked that poetic excitement, accompanied by protracted labor in composition, always brought on more or less of bodily derangement. He preserved himself from permanently injurious consequences by his excellent habits of life.

A very eminent living author, whose name I do not feel at liberty to mention, is always prostrated by severe illness at the conclusion of each of his works; another is unwell every Sunday, because he does not write on that day, and the recoil after the mental stretch of the week is too much for him.

In the case of Wordsworth, the physical constitution is believed to have been sound. His health at seventy-two was excellent; the two other instances are more doubtful in this respect, yet both these writers enjoy very fair health, after the pressure of brain-work has been removed for any considerable time. A clergyman of robust organization, who does a good deal of literary work at intervals, told me that, whenever he had attempted to make it regular, the consequence had always been distressing nervous sensations, from which at other times he was perfectly free. A tradesman, whose business affords an excellent outlet for energetic bodily activity, told me that having attempted, in addition to his ordinary work, to acquire a foreign language which seemed likely to be useful to him, he had been obliged to abandon it on account of alarming cerebral symptoms. This man has immense vigor and energy, but the digestive functions, in this instance, are sluggish. However, when he abandoned study, the cerebral inconveniences disappeared, and have never returned since.

Two Londoners who followed literature as a profession, and who both worked to excess, had cerebral attacks of a still more decided kind. One of them, after his recovery, resolved to regulate his work in future, so that it might never pass the limits of moderation. He is now living, and in possession of a remarkably clear and richly furnished intellect. The other, who returned to his old habits, died in two years from softening of the brain. I am not aware that in these cases there was any other disease than that produced by an immoderate use of the mental powers.

The health of Sir Walter Scott—we have this on his own testimony—was uncommonly robust, and there is every reason to believe that his paralysis was brought on by the excessive labor which resulted from his pecuniary embarrassments, and that without such excessive mental labor and anxiety he would have preserved his health much longer. The death of Byron was due, no doubt, quite as much to habits of dissipation as to poetical excitement; still it is probable that he would have borne either of these evil influences if it had not been accompanied by the other; and that to a man whose way of life was so exhausting as Byron’s was, the addition of constant poetical excitement and hard work in production, may be said without exaggeration to have killed him. We know that Scott, with all his facility, had a dread of that kind of excitement, and withdrew from the poetical arena to avoid it. We know, too, that the brain of Southey proved ultimately unable to endure the burden of the tasks he laid upon it.

Difficult as it may be in some instances to ascertain quite accurately whether an overworked man had perfectly sound bodily health to begin with, obvious as it may be that in many breakdowns the final failure has been accelerated by diseases independent of mental work, the facts remain, that the excessive exercise of the mental powers is injurious to bodily health and that all intellectual labor proceeds upon a physical basis. No man can safely forget this, and act as if he were a pure spirit, superior to physical considerations. Let me then, in other letters on this subject, direct your attention to the close connection which exists between intellectual production and the state of the body and the brain; not with the authority of a physician, but with the sympathy of a fellow-laborer, who has learned something from his own experience, and still more from the more varied experience of his friends.

LETTER II.

TO A YOUNG MAN OF LETTERS WHO WORKED EXCESSIVELY.

Mental labor rarely compatible with the best physical conditions—Wordsworth’s manner of composition—Mr. W. F. A. Delane—George Sand working under pressure—Sir Walter Scott’s field-sports—Physical exercise the best tranquillizer of the nervous system—Eugène Sue—Shelley’s love of boating—Nervousness the affliction of brain-workers—Nature’s kindly warning—Working by spurts—Beckford—Byron—Indolence of men of genius fortunate—Distressing nature of cerebral fatigue.

It is possible that many of the worst results of intellectual labor may be nothing more than indirect results. We may suffer, not from the work itself, but from sedentary confinement, from want of exercise, from insufficient variety and amusement.

Mental labor is seldom compatible with the best physical conditions; it is so sometimes, however, or may be made so by an effort of will and resolution. Wordsworth composed his poetry in the open air, as he walked, and so preserved himself from the evil of close confinement to the desk. Mr. W. F. A. Delane, who did so much for the organization of the Times newspaper when it was under his management, began by doing law reports for that paper, in London and on circuit. His appearance of rude health surprised other members of his profession, but he accounted for it by the care he took to compensate for the bad air and sedentary labor in the courts of law by travelling between the assize towns on horseback, and also by a more than commonly temperate way of life, since he carefully avoided the bar dinners, eating and drinking for health alone. It is possible to endure the most unhealthy labor when there are frequent intervals of invigorating exercise, accompanied by habits of strict sobriety. The plan, so commonly resorted to, of trying to get health in stock for the rest of the year by a fortnight’s hurried travelling in the autumn, is not so good as Mr. Delane’s way of getting the week’s supply of health during the course of the week itself.

It happened once that George Sand was hurried by the proprietor of a newspaper who wanted one of her novels as a feuilleton. She has always been a careful and deliberate worker, very anxious to give all necessary labor in preparation, and, like all such conscientious laborers, she can scarcely endure to be pushed. However, on this occasion she worked