The Intellectual Life

by Philip Gilbert Hamerton

Mental labor believed to be innocuous to healthy persons—Difficulty of testing this—Case of the poet Wordsworth—Case of an eminent living author—Case of a literary clergyman—Case of an energetic tradesman—Instances of two Londoners who wrote professionally—Scott’s paralysis—Byron’s death—All intellectual labor proceeds on a physical basis.

So little is really known about the action of the nervous system, that to go into the subject from the physiological point of view would be to undertake a most difficult investigation, entirely beyond the competence of an unscientific person like your present correspondent. You will, therefore, permit me, in reference to this, to leave you to the teaching of the most advanced physiologists of the time; but I may be able to offer a few practical suggestions, based on the experience of intellectual workers, which may be of use to a man whose career is likely to be one of severe and almost uninterrupted intellectual labor.

A paper was read several years ago before the members of a society in London, in which the author maintained that mental labor was never injurious to a perfectly healthy human organization, and that the numerous cases of break-down, which are commonly attributed to excessive brain-work, are due, in reality, to the previous operation of 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.