I challenge any man who trades in ideas to deny that he has this experience. The truth is that he has it constantly. It overtakes poets and contrapuntists, critics and dramatists, philosophers and journalists; it may even be shared, so far as I know, by advertisement writers, chautauqua orators and the rev. clergy. The characters that all anatomists of melancholy mark in it are the irregular ebb and flow of the tides, and the impossibility of getting them under any sort of rational control. The brain, as it were, stands to one side and watches itself pitching and tossing, full of agony but essentially helpless. Here the man of creative imagination pays a ghastly price for all his superiorities and immunities; nature takes revenge upon him for dreaming of improvements in the scheme of things. Sitting there in his lonely room, gnawing the handle of his pen, racked by his infernal quest, horribly bedevilled by incessant flashes of itching, toothache, eye-strain and evil conscience—thus tortured, he makes atonement for his crime of being intelligent. The normal man, the healthy and honest man, the good citizen and householder—this man, I daresay, knows nothing of all that travail. It is reserved especially for artists and metaphysicians. It is the particular penalty of those who pursue strange butterflies into dark forests, and go fishing in enchanted and forbidden streams.
Let us, then, assume that the fact is proved: the nearest poet is a witness to it. But what of the underlying mystery? How are we to account for that puckish and inexplicable rise and fall of inspiration? My questions, of course, are purely rhetorical. Explanations exist; they have existed for all time; there is always a well-known solution to every human problem—neat, plausible, and wrong. The ancients, in the case at bar, laid the blame upon the gods: sometimes they were remote and surly, and sometimes they were kind. In the Middle Ages lesser powers took a hand in the matter, and so one reads of works of art inspired by Our Lady, by the Blessed Saints, by the souls of the departed, and even by the devil. In our own day there are explanations less super-natural but no less fanciful—to wit, the explanation that the whole thing is a matter of pure chance, and not to be resolved into any orderly process—to wit, the explanation that the controlling factor is external circumstance, that the artist happily married to a dutiful wife is thereby inspired—finally, to make an end, the explanation that it is all a question of Freudian complexes, themselves lurking in impenetrable shadows. But all of these explanations fail to satisfy the mind that is not to be put off with mere words. Some of them are palpably absurd; others beg the question. The problem of the how remains, even when the problem of the why is disposed of. What is the precise machinery whereby the cerebrum is bestirred to such abnormal activity on one day that it sparkles and splutters like an arclight, and reduced to such feebleness on another day that it smokes and gutters like a tallow dip?
In this emergency, having regard for the ages-long and unrelieved sufferings of artists great and small, I offer a new, simple, and at all events not ghostly solution. It is supported by the observed facts, by logical analogies and by the soundest known principles of psychology, and so I present it without apologies. It may be couched, for convenience, in the following brief terms: that inspiration, so-called, is a function of metabolism, and that it is chiefly conditioned by the state of the intestinal flora—in larger words, that a man's flow of ideas is controlled and determined, both quantitatively and qualitatively, not by the whims of the gods, nor by the terms of his armistice with his wife, nor by the combinations of some transcendental set of dice, but by the chemical content of the blood that lifts itself from his liver to his brain, and that this chemical content is established in his digestive tract, particularly south of the pylorus. A man may write great poetry when he is drunk, when he is cold and miserable, when he is bankrupt, when he has a black eye, when his wife glowers at him across the table, when his children lie dying of smallpox; he may even write it during an earthquake, or while crossing the English channel, or in the midst of a Methodist revival, or in New York. But I am so far gone in materialism that I am disposed to deny flatly and finally, and herewith do deny flatly and finally, that there has lived a poet in the whole history of the world, ancient or modern, near or far, who ever managed to write great poetry, or even passably fair and decent poetry, at a time when he was suffering from stenosis at any point along the thirty-foot via dolorosa running from the pylorus to the sigmoid flexure. In other words, when he was—
But perhaps I had better leave your medical adviser to explain. After all, it is not necessary to go any further in this direction; the whole thing may be argued in terms of the blood stream—and the blood stream is respectable, as the duodenum is an outcast. It is the blood and the blood only, in fact, that the cerebrum is aware of; of what goes on elsewhere it can learn only by hearsay. If all is well below, then the blood that enters the brain through the internal carotid is full of the elements necessary to bestir the brain-cells to their highest activity; if, on the contrary, anabolism and katabolism are going on ineptly, if the blood is not getting the supplies that it needs and not getting rid of the wastes that burden it, then the brain-cells will be both starved and poisoned, and not all the king's horses and all the king's men can make them do their work with any show of ease and efficiency. In the first case the man whose psyche dwells in the cells will have a moment of inspiration—that is, he will find it a strangely simple and facile matter to write his poem, or iron out his syllogism, or make his bold modulation from F sharp minor to C major, or get his flesh-tone, or maybe only perfect his swindle. But in the second case he will be stumped and helpless. The more he tries, the more vividly he will be conscious of his impotence. Sweat will stand out in beads upon his brow, he will fish patiently for the elusive thought, he will try coaxing and subterfuge, he will retire to his ivory tower, he will tempt the invisible powers with black coffee, tea, alcohol and the alkaloids, he may even curse God and invite death—but he will not write his poem, or iron out his syllogism, or find his way into C major, or get his flesh-tone, or perfect his swindle.
Fix your eye upon this hypothesis of metabolic inspiration, and at once you will find the key to many a correlative mystery. For one thing, it quickly explains the observed hopelessness of trying to pump up inspiration by mere hard industry—the essential imbecility of the I,000 words a day formula. Let there be stenosis below, and not all the industry of a Hercules will suffice to awaken the lethargic brain. Here, indeed, the harder the striving, the worse the stagnation—as every artist knows only too well. And why not? Striving in the face of such an interior obstacle is the most cruel of enterprises—a business more nerve-wracking and exhausting than reading a newspaper or watching a bad play. The pain thus produced, the emotions thus engendered, react upon the liver in a manner scientifically displayed by Dr. George W. Crile in his "Man: An Adaptive Mechanism," and the result is a steady increase in the intestinal demoralization, and a like increase in the pollution of the blood. In the end the poor victim comes to a familiar pass; beset on the one hand by impotence and on the other hand by an impatience grown pathological, he gets into a state indistinguishable from the frantic. It is at such times that creative artists suffer most atrociously. It is then that they writhe upon the sharp spears and red-hot hooks of a jealous and unjust Creator for their invasion of His monopoly. It is then that they pay a grisly super-tax upon their superiority to the great herd of law-abiding and undistinguished men. The men of this herd never undergo any comparable torture; the agony of the artist is quite beyond their experience and even beyond their imagination. No catastrophe that could conceivably overtake a lime and cement dealer, a curb broker, a lawyer, a plumber or a Presbyterian is to be mentioned in the same breath with the torments that, to the most minor of poets, are familiar incidents of his professional life, and, to such a man as Poe, or Beethoven, or Brahms, are the commonplaces of every day. Beethoven suffered more during the composition of the Fifth symphony than all the judges on the supreme benches of the world have suffered jointly since the time of the Gerousia.
Again, my hypothesis explains the fact that inspiration, save under extraordinary circumstances, is never continuous for more than a relatively short period. A banker, a barber or a manufacturer of patent medicines does his work day after day without any noticeable rise or fall of efficiency; save when he is drunk, jailed or ill in bed the curve of his achievement is flattened out until it becomes almost a straight line. But the curve of an artist, even of the greatest of artists, is frightfully zig-zagged. There are moments when it sinks below the bottom of the chart, and immediately following there may be moments when it threatens to run off the top. Some of the noblest passages written by Shakespeare are in his worst plays, cheek by jowl with padding and banality; some of the worst music of Wagner is in his finest music dramas. There is, indeed, no such thing as a flawless masterpiece. Long labored, it may be gradually enriched with purple passages—the high inspirations of widely separated times crowded together—, but even so it will remain spotty, for those purple passages will be clumsily joined, and their joints will remain as apparent as so many false teeth. Only the most elementary knowledge of psychology is needed to show the cause of the zig-zagging that I have mentioned. It lies in the elemental fact that the chemical constitution of the blood changes every hour, almost every minute. What it is at the beginning of digestion is not what it is at the end of digestion, and in both cases it is enormously affected by the nature of the substances digested. No man, within twenty-four hours after eating a meal in a Pennsylvania Railroad dining-car, could conceivably write anything worth reading. A tough beefsteak, I daresay, has ditched many a promising sonnet, and bad beer, as every one knows, has spoiled hundreds of sonatas. Thus inspiration rises and falls, and even when it rises twice to the same height it usually shows some qualitative difference—there is the inspiration, say, of Spring vegetables and there is the inspiration of Autumn fruits. In a long work the products of greatly differing inspirations, of greatly differing streams of blood, are hideously intermingled, and the result is the inevitable spottiness that I have mentioned. No one but a maniac argues that "Die Meistersinger" is all good. One detects in it days when Wagner felt, as the saying goes, like a fighting cock, but one also detects days when he arose in the morning full of acidosis and despair—days when he turned heavily from the Pierian spring to castor oil.
Moreover, it must be obvious that the very conditions under which works of art are produced tend to cause great aberrations in metabolism. The artist is forced by his calling to be a sedentary man. Even a poet, perhaps the freest of artists, must spend a good deal of time bending over a desk. He may conceive his poems in the open air, as Beethoven conceived his music, but the work of reducing them to actual words requires diligent effort in camera. Here it is a sheer impossibility for him to enjoy the ideal hygienic conditions which surround the farmhand, the curb-broker and the sailor. His! viscera are congested; his eyes are astrain; his muscles are without necessary exercise. Furthermore, he probably breathes bad air and goes without needed sleep. The result is inevitably some disturbance of metabolism, with a vitiated blood supply and a starved cerebrum. One is always surprised to encounter a poet who is ruddy and stout; the standard model is a pale and flabby stenotic, kept alive by patent medicines. So with the painter, the musical composer, the sculptor, the artist in prose. There is no more confining work known to man than instrumentation. The composer who has spent a day at it is invariably nervous and ill. For hours his body is bent over his music-paper, the while his pen engrosses little dots upon thin lines. I have known composers, after a week or so of such labor, to come down with auto-intoxication in its most virulent forms. Perhaps the notorious ill health of Beethoven, and the mental break-downs of Schumann, Tschaikowsky and Hugo Wolf had their origin in this direction. It is difficult, going through the history of music, to find a single composer in the grand manner who was physically and mentally up to par.
I do not advance it as a formal corollary, but no doubt this stenosis hypothesis also throws some light upon two other immemorial mysteries, the first being the relative æsthetic sterility of women, and the other being the low æsthetic development of certain whole classes, and even races of men, e. g., the Puritans, the Welsh and the Confederate Americans. That women suffer from stenosis far more than men is a commonplace of internal medicine; the weakness is chiefly to blame, rather than the functional peculiarities that they accuse, for their liability to headache. A good many of them, in fact, are habitually in the state of health which, in the artist, is accompanied by an utter inability to work. This state of health, as I have said, does not inhibit all mental activity. It leaves the powers of observation but little impaired; it does not corrupt common sense; it is not incompatible with an intelligent discharge of the ordinary duties of life. Thus a lime and cement dealer, in the midst of it, may function almost as well as when his metabolic processes are perfectly normal, and by the same token a woman chronically a victim to it may yet show all the sharp mental competence which characterizes her sex. But here the thing stops. To go beyond—to enter the realm of constructive thinking, to abandon the mere application of old ideas and essay to invent new ideas, to precipitate novel and intellectual concepts out of the chaos of memory and perception—this is quite impossible to the stenotic. Ergo, it is unheard of among classes and races of men who feed grossly and neglect personal hygiene; the pill-swallower is the only artist in such groups. One may thus argue that the elder Beecham saved poetry in England, as the younger Beecham saved music.... But, as I say, I do not stand behind the hypothesis in this department, save, perhaps, in the matter of women. I could amass enormous evidences in favor of it, but against them there would always loom the disconcerting contrary evidence of the Bulgarians. Among them, I suppose, stenosis must be unknown—but so are all the fine arts.
"La force et la foiblesse de l'esprit," said Rochefoucauld, "sont mal nommées; elles ne sont, en effect, que la bonne ou la mauvaise des organes du corps." Science wastes itself hunting in the other direction. We are flooded with evidences of the effects of the mind on the body, and so our attention is diverted from the enormously greater effects of the body on the mind. It is rather astonishing that the Wassermann reaction has not caused the latter to be investigated more thoroughly. The first result of the general employment of that great diagnostic device was the discovery that thousands of cases of so-called mental disease were really purely physical in origin—that thousands of patients long supposed to have been crazed by seeing ghosts, by love, by grief, or by reverses in the stock-market were actually victims of the small but extremely enterprising spirochæte pallida. The news heaved a bomb into psychiatry, but it has so far failed to provoke a study of the effects of other such physical agents. Even the effects of this one agent remain to be inquired into at length. One now knows that it may cause insanity, but what of the lesser mental aberrations that it produces? Some of these aberrations may be actually beneficial. That is to say, the mild toxemia accompanying the less virulent forms of infection may stimulate the brain to its highest functioning, and so give birth to what is called genius—a state of mind long recognized, by popular empiricism, as a sort of half-way station on the road to insanity. Beethoven, Nietzsche and Schopenhauer suffered from such mild toxemias, and there is not the slightest doubt that their extraordinary mental activity was at least partly due to the fact. That tuberculosis, in its early stages, is capable of the same stimulation is a commonplace of observation. The consumptive may be weak physically, but he is usually very alert mentally. The history of the arts, in fact, shows the names of hundreds of inspired consumptives.
Here a physical infirmity produces a result that is beneficial, just as another physical infirmity, the stenosis aforesaid, produces a result that is baleful. The artist often oscillates horribly between the two effects; he is normally anything but a healthy animal. Perfect health, indeed, is a boon that very few men above the rank of clodhoppers ever enjoy. What health means is a degree of adaptation to the organism's environment so nearly complete that there is no irritation. Such a state, it must be obvious, is not often to be observed in organisms of the highest complexity. It is common, perhaps, in the earthworm. This elemental beast makes few demands upon its environment, and is thus subject to few diseases. It seldom gets out of order until the sands of its life are run, and then it suffers one grand illness and dies forthwith. But man is forever getting out of order, for he is enormously complicated—and the higher he rises in complexity, the more numerous and the more serious are his derangements. There are whole categories of diseases, e. g., neurasthenia and hay-fever, that afflict chiefly the more civilized and delicate ranks of men, leaving the inferior orders unscathed. Good health in man, indeed, is almost invariably a function of inferiority. A professionally healthy man, e. g., an acrobat, an osteopath or an ice-wagon driver, is always stupid. In the Greece of the great days the athletes we hear so much about were mainly slaves. Not one of the eminent philosophers, poets or statesmen of Greece was a good high-jumper. Nearly all of them, in fact, suffered from the same malaises which afflict their successors of to-day, as you will quickly discern by examining their compositions. The æsthetic impulse, like the thirst for truth, might almost be called a disease. It seldom if ever appears in a perfectly healthy man.