What have I got to say about temperance, the use of animal food, and so forth? These are questions asked me. Nature has proved a wise teacher, as I think, in my own case. The older I grow, the less use I make of alcoholic stimulants. In fact, I hardly meddle with them at all, except a glass or two of champagne occasionally. I find that by far the best borne of all drinks containing alcohol. I do not suppose my experience can be the foundation of a universal rule. Dr. Holyoke, who lived to be a hundred, used habitually, in moderate quantities, a mixture of cider, water, and rum. I think, as one grows older, less food, especially less animal food, is required. But old people have a right to be epicures, if they can afford it. The pleasures of the palate are among the last gratifications of the senses allowed them. We begin life as little cannibals,—feeding on the flesh and blood of our mothers. We range through all the vegetable and animal products, of nature, and I suppose, if the second childhood could return to the food of the first, it might prove a wholesome diet.

What do I say to smoking? I cannot grudge an old man his pipe, but I think tobacco often does a good deal of harm to the health,—to the eyes especially, to the nervous system generally, producing headache, palpitation, and trembling. I myself gave it up many years ago. Philosophically speaking, I think self-narcotization and self-alcoholization are rather ignoble substitutes for undisturbed self-consciousness and unfettered self-control.

Here is another of those brain-tapping letters, of similar character, which I have no objection to answering at my own time and in the place which best suits me. As the questions must be supposed to be asked with a purely scientific and philanthropic purpose, it can make little difference when and where they are answered. For myself, I prefer our own tea-table to the symposia to which I am often invited. I do not quarrel with those who invite their friends to a banquet to which many strangers are expected to contribute. It is a very easy and pleasant way of giving an entertainment at little cost and with no responsibility. Somebody has been writing to me about “Oatmeal and Literature,” and somebody else wants to know whether I have found character influenced by diet; also whether, in my opinion, oatmeal is preferable to pie as an American national food.

In answer to these questions, I should say that I have my beliefs and prejudices; but if I were pressed hard for my proofs of their correctness, I should make but a poor show in the witness-box. Most assuredly I do believe that body and mind are much influenced by the kind of food habitually depended upon. I am persuaded that a too exclusively porcine diet gives a bristly character to the beard and hair, which is borrowed from the animal whose tissues these stiff-bearded compatriots of ours have too largely assimilated. I can never stray among the village people of our windy capes without now and then coming upon a human being who looks as if he had been split, salted, and dried, like the salt-fish which has built up his arid organism. If the body is modified by the food which nourishes it, the mind and character very certainly will be modified by it also. We know enough of their close connection with each other to be sure of that, without any statistical observations to prove it.

Do you really want to know “whether oatmeal is preferable to pie as an American national food”? I suppose the best answer I can give to your question is to tell you what is my own practice. Oatmeal in the morning, as an architect lays a bed of concrete to form a base for his superstructure. Pie when I can get it; that is, of the genuine sort, for I am not patriotic enough to think very highly of the article named after the Father of his Country, who was first in war, first in peace,—not first in pies, according to my standard.

There is a very odd prejudice against pie as an article of diet. It is common to hear every form of bodily degeneracy and infirmity attributed to this particular favorite food. I see no reason or sense in it. Mr. Emerson believed in pie, and was almost indignant when a fellow-traveller refused the slice he offered him. “Why, Mr.________,” said be, “what is pie made for!” If every Green Mountain boy has not eaten a thousand times his weight in apple, pumpkin, squash, and mince pie, call me a dumpling. And Colonel Ethan Allen was one of them,—Ethan Allen, who, as they used to say, could wrench off the head of a wrought nail with his teeth.

If you mean to keep as well as possible, the less you think about your health the better. You know enough not to eat or drink what you have found does not agree with you. You ought to know enough not to expose yourself needlessly to draughts. If you take a “constitutional,” walk with the wind when you can, and take a closed car against it if you can get one. Walking against the wind is one of the most dangerous kinds of exposure, if you are sensitive to cold. But except a few simple rules such as I have just given, let your health take care of itself so long as it behaves decently. If you want to be sure not to reach threescore and twenty, get a little box of homoeopathic pellets and a little book of homeopathic prescriptions. I had a poor friend who fell into that way, and became at last a regular Hahnemaniac. He left a box of his little jokers, which at last came into my hands. The poor fellow had cultivated symptoms as other people cultivate roses or chrysanthemums. What a luxury of choice his imagination presented to him! When one watches for symptoms, every organ in the body is ready to put in its claim. By and by a real illness attacked him, and the box of little pellets was shut up, to minister to his fancied evils no longer.

Let me tell you one thing. I think if patients and physicians were in the habit of recognizing the fact I am going to mention, both would be gainers. The law I refer to must be familiar to all observing physicians, and to all intelligent persons who have observed their own bodily and mental conditions. This is the curve of health. It is a mistake to suppose that the normal state of health is represented by a straight horizontal line. Independently of the well-known causes which raise or depress the standard of vitality, there seems to be,—I think I may venture to say there is,—a rhythmic undulation in the flow of the vital force. The “dynamo” which furnishes the working powers of consciousness and action has its annual, its monthly, its diurnal waves, even its momentary ripples, in the current it furnishes. There are greater and lesser curves in the movement of every day's life,—a series of ascending and descending movements, a periodicity depending on the very nature of the force at work in the living organism. Thus we have our good seasons and our bad seasons, our good days and our bad days, life climbing and descending in long or short undulations, which I have called the curve of health.

From this fact spring a great proportion of the errors of medical practice. On it are based the delusions of the various shadowy systems which impose themselves on the ignorant and half-learned public as branches or “schools” of science. A remedy taken at the time of the ascent in the curve of health is found successful. The same remedy taken while the curve is in its downward movement proves a failure.

So long as this biological law exists, so long the charlatan will keep his hold on the ignorant public. So long as it exists, the wisest practitioner will be liable to deceive himself about the effect of what he calls and loves to think are his remedies. Long-continued and sagacious observation will to some extent undeceive him; but were it not for the happy illusion that his useless or even deleterious drugs were doing good service, many a practitioner would give up his calling for one in which he could be more certain that he was really being useful to the subjects of his professional dealings. For myself, I should prefer a physician of a sanguine temperament, who had a firm belief in himself and his methods. I do not wonder at all that the public support a whole community of pretenders who show the portraits of the patients they have “cured.” The best physicians will tell you that, though many patients get well under their treatment, they rarely cure anybody. If you are told also that the best physician has many more patients die on his hands than the worst of his fellow-practitioners, you may add these two statements to your bundle of paradoxes, and if they puzzle you I will explain them at some future time.