Complete Works of Plutarch — Volume 3: Essays and Miscellanies

by Plutarch

I present you with this Sixth Book of Table Discourses, wherein the first thing that cometh to be discussed is an inquiry into the reason why those that are fasting are more inclinable to drink than to eat. For the assertion carries in it a repugnancy to the standing rules of reason; forasmuch as the decayed stock of dry nourishment seems more naturally to call for its proper supplies. Whereupon I told the company, that of those things whereof our bodies are composed, heat only—or, however, above all the rest—stands in continual need of such accessions; for the truth of which this may be urged as a convincing argument: neither air, water, nor earth requires any matter to feed upon, or devours whatsoever lies next it; but fire alone doth. Hence it comes to pass that young men, by reason of their greater share of natural heat, have commonly greater stomachs than old men; whereas on the contrary, old men can endure fasting much better, for this only reason, because their natural heat is grown weaker and decayed. Just so we see it fares with bloodless animals, which by reason of the want of heat require very little nourishment. Besides, every one of us finds by experience, that bodily exercises, clamors, and whatever other actions by violent motion occasion heat, commonly sharpen our stomachs and get us a better appetite. Now, as I take it, the most natural and principal nourishment of heat is moisture, as it evidently appears from flames, which increase by the pouring in of oil, and from ashes, which are of the driest things in nature; for after the humidity is consumed by the fire, the terrene and grosser parts remain without any moisture at all. Add to these, that fire separates and dissolves bodies by extracting that moisture which should keep them close and compact. Therefore, when we are fasting, the heat first of all forces the moisture out of the relics of the nourishment that remain in the body, and then, pursuing the other humid parts, preys upon the natural moisture of the flesh itself. Hence the body like clay becoming dry, wants drink more than meat; till the heat, receiving strength and vigor by our drinking, excites an appetite for more substantial food.

QUESTION II. WHETHER WANT OF NOURISHMENT CAUSETH HUNGER AND THIRST OR THE CHANGE IN THE FIGURES OF THE PORES. PHILO, PLUTARCH.

After these things were spoke, Philo the physician started the first question, asserting that thirst did not arise from the want of nourishment, but from the different transfiguration of certain passages. For, says he, this may be made evident, partly from what we see happens to those that thirst in the night, who, if sleep chance to steal upon them, though they did not drink before, are yet rid of their thirst; partly from persons in a fever, who, as soon as the disease abates or is removed, thirst no more. Nay, a great many men, after they have bathed or vomited, perceive presently that their thirst is gone; yet none of these add anything to their former moisture, but only the transfiguration of the pores causeth a new order and disposition. And this is more evident in hunger; for many sick persons, at the same time when they have the greatest need of meat, have no stomach. Others, after they have filled their bellies, have the same stomachs, and their appetites are rather increased than abated. There are a great many besides who loathe all sorts of diet, yet by taking of a pickled olive or caper recover and confirm their lost appetites. This doth clearly evince, that hunger proceeds from some change in the pores, and not from any want of sustenance, forasmuch as such kind of food lessens the defect by adding food, but increases the hunger; and the pleasing relish and poignancy of such pickles, by binding and straitening the mouth of the ventricle, and again by opening and loosening of it, beget in it a convenient disposition to receive meat, which we call by the name of appetite.

I must confess this discourse seemed to carry in it some shadow of reason and probability; but in the main it is directly repugnant to the chief end of nature, to which appetite directs every animal. For that makes it desire a supply of what they stand in need of, and avoid a defect of their proper food. For to deny what especially makes a living creature differ from an inanimate object as given to us for our preservation and conservation (being as it were the receiver of what supplements and agrees with the nature of our body) is the argument of one who takes no account of natural law, especially when he would add that the characteristic proceeds from the great or small size of the pores. Besides, it is absurd to think that a body through the want of natural heat should be chilled, and should not in like manner hunger and thirst through the want of natural moisture and nourishment. And yet this is more absurd, that Nature when overcharged should desire to disburden herself, and yet should not require to be supplied on account of emptiness, but on account of some condition or other, I know not what. Moreover, these needs and supplies in relation to animals have some resemblance to those we see in husbandry. There are a great many like qualities and like provisions on both sides. For in a drought we water our grounds, and in case of excessive heat, we frequently make use of moderate coolers; and when our fruits are too cold, we endeavor to preserve and cherish them, by covering and making fences about them. And for such things as are out of the reach of human power, we implore the assistance of the gods, that is, to send us softening dews, and sunshines qualified with moderate winds; that so Nature, being always desirous of a due mixture, may have her wants supplied. And for this reason I presume it was that nourishment is called [Greek omitted] (from [Greek omitted]), because it observes and preserves Nature. Now Nature is preserved in plants, which are destitute of sense, by the favorable influence of the circumambient air (as Empedocles says), moistening them in such a measure as is most agreeable to their nature. But as for us men, our appetites prompt us on to the chase and pursuance of whatsoever is wanting to our natural temperament.

But now let us pass to the examination of the truth of the arguments that seem to favor the contrary opinion. And for the first, I suppose that those meats that are palatable and of a quick and sharp taste do not beget in us an appetite, but rather bite and fret those parts that receive the nourishment, as we find that scratching the skin causes itching. And supposing we should grant that this affection or disposition is the very thing which we call the appetite, it is probable that, by the operation of such kind of food as this, the nourishment may be made small, and so much of it as is convenient for Nature severed from the rest, so that the indigency proceeds not from the transmutation, but from the evacuation and purgation of the passages. For sharp, tart, and salt things grate the inward matter, and by dispersing of it cause digestion, so that by the concoctions of the old there may arise an appetite for new. Nor does the cessation of thirst after bathing spring from the different position of the passages, but from a new supply of moisture received into the flesh, and conveyed from thence to them also. And vomiting, by throwing off whatever is disagreeable to Nature, puts her in a capacity of enjoying what is most suitable for her. For thirst does not call for a superfluity of moisture, but only for so much as sufficeth Nature; and therefore, though a man had plenty of disagreeable and unnatural moisture, yet he wants still, for that stops the course of the natural, which Nature is desirous of, and hinders a due mixture and temperament, till it be cast out and the pores receive what is most proper and convenient for them. Moreover, a fever forces all the moisture downward; and the middle parts being in combustion, it all retires thither, and there is shut up and forcibly detained. And therefore it is usual with a great many to vomit, by reason of the density of the inward parts squeezing out the moisture, and likewise to thirst, by reason of the poor and dry state the rest of the body is in. But after the violence of the distemper is once abated, and the raging heat hath left the middle parts, the moisture begins to disperse itself again; and according to its natural motion, by a speedy conveyance into all the parts, it refreshes the entrails, softens and makes tender the dry and parched flesh. Very often also it causes sweat, and then the defect which occasioned thirst ceases; for the moisture leaving that part of the body wherein it was forcibly detained, and out of which it hardly made an escape, retires to the place where it is wanted. For as it fares with a garden wherein there is a large well,—if nobody draw thereof and water it, the herbs must needs wither and die,—so it fares with a body; if all the moisture be contracted into one part, it is no wonder if the rest be in want and dry, till it is diffused again over the other limbs. Just so it happens to persons in a fever, after the heat of the disease is over, and likewise to those who go to sleep thirsty. For in these, sleep draws the moisture to the middle parts, and equally distributes it amongst the rest, satisfying them all. But, I pray, what kind of transfiguration of the passages is this which causes hunger and thirst? For my part, I know no other distinction of the pores but in respect of their number or that some of them are shut, others open. As for those that are shut, they can neither receive meat nor drink; and as for those that are open, they make an empty space, which is nothing but a want of that which Nature requires. Thus, sir, when men dye cloth, the liquor in which they dip it hath very sharp and abstersive particles; which, consuming and scouring off all the matter that filled the pores, make the cloth more apt to receive the dye, because its pores are empty and want something to fill them up.

QUESTION III. WHAT IS THE REASON THAT HUNGER IS ALLAYED BY DRINKING, BUT THIRST INCREASED BY EATING? THE HOST, PLUTARCH, AND OTHERS.

After we had gone thus far, the master of the feast told the company that the former points were reasonably well discussed; and waiving at present the discourse concerning the evacuation and repletion of the pores, he requested us to fall upon another question, that is, how it comes to pass that hunger is stayed by drinking, when, on the contrary, thirst is more violent after eating. Those who assign the reason to be in the pores seem with a great deal of ease and probability, though not with so much truth, to explain the thing. For seeing the pores in all bodies are of different sorts and sizes, the more capacious receive both dry and humid nourishment, the lesser take in drink, not meat; but the vacuity of the former causes hunger, of the latter thirst. Hence it is that men that thirst are never better after they have eaten, the pores by reason of their straitness denying admittance to grosser nourishment, and the want of suitable supply still remaining. But after hungry men have drunk, the moisture enters the greater pores, fills the empty spaces, and in part assuages the violence of the hunger.

Of this effect, said I, I do not in the least doubt, but I do not approve of the reason they give for it. For if any one should admit these pores (which some are so unreasonably fond of) to be in the flesh, he must needs make it a very soft, loose, flabby substance; and that the same parts do not receive the meat and drink, but that they run through different canals and strainers in them, seems to me to be a very strange and unaccountable opinion. For the moisture mixes with the dry food, and by the assistance of the natural heat and spirits cuts the nourishment far smaller than any cleaver or chopping-knife, to the end that every part of it may be exactly fitted to each part of the body, not applied, as they would have it, to little vessels and pores, but united and incorporated with the whole substance. And unless the thing were explained after this manner, the hardest knot in the question would still remain unsolved. For a man that has a thirst upon him, supposing he eats and doth not drink, is so far from quenching, that he does highly increase it. This point is yet undiscussed. But mark, said I, whether the positions on my side be clear and evident or not. In the first place, we take it for granted that moisture is wasted and destroyed by heat, that the drier parts of the nourishment qualified and softened by moisture, are diffused and fly away in vapors. Secondly, we must by no means suppose that all hunger is a total privation of dry, and thirst of humid nutriment, but only a moderate one, and such as is sufficient to cause the one or the other; for whoever are wholly deprived of either of these, they neither hunger nor thirst, but die instantly. These things being laid down as a foundation, it will be no hard matter to find out the cause. For thirst is increased by eating for this reason, because that meat by its natural siccity contracts and destroys all that small quantity of moisture which remained scattered here and there through the body; just as happens in things obvious to our senses; we see the earth, dust, and the like presently suck in the moisture that is mixed with them. Now, on the contrary, drink must of necessity assuage hunger; for the moisture watering and diffusing itself through the dry and parched relics of the meat we ate last, by turning them into thin juices, conveys them through the whole body, and succors the indigent parts. And therefore with very good reason Erasistratus called moisture the vehicle of the meat; for as soon as this is mixed with things which by reason of their dryness, or some other quality, are slow and heavy, it raises them up and carries them aloft. Moreover, several men, when they have drunk nothing at all, but only washed themselves, all on a sudden are freed from a very violent hunger, because the extrinsic moisture entering the pores makes the meat within more succulent and of a more nourishing nature, so that the heat and fury of the hunger declines and abates; and therefore a great many of those who have a mind to starve themselves to death live a long time only by drinking water; that is, as long as the siccity does not quite consume whatever may be united to and nourish the body.

QUESTION IV. WHAT IS THE REASON THAT A BUCKET OF WATER DRAWN OUT OF A WELL, IF IT STANDS ALL NIGHT IN THE AIR THAT IS IN THE WELL, IS, MORE COLD IN THE MORNING THAN THE REST OF THE WATER?

A GUEST, PLUTARCH, AND OTHERS.