Medical inquiries and observations. By Benjamin Rush, M.D. professor of the institutes of medicine, and of clinical practice in the University of Pennsylvania. ; Volume II.

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Medical inquiries and observations. By Benjamin Rush, M.D. professor of the institutes of medicine, and of clinical practice in the University of Pennsylvania. ; Volume II.
Author
Rush, Benjamin, 1746-1813.
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Philadelphia: :: Printed by T. Dobson, at the stone-house, no. 41, South Second-Street.,
M,DCC,XCIII. [1793]
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"Medical inquiries and observations. By Benjamin Rush, M.D. professor of the institutes of medicine, and of clinical practice in the University of Pennsylvania. ; Volume II." In the digital collection Evans Early American Imprint Collection. https://name.umdl.umich.edu/N19953.0001.001. University of Michigan Library Digital Collections. Accessed May 27, 2025.

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AN INQUIRY INTO THE INFLUENCE OF PHYSICAL CAUSES UPON THE MORAL FACULTY, DELIVERED BEFORE THE AMERICAN PHILOSOPHICAL SOCIETY, Held in Philadelphia, on the 27th of February, 1786.

GENTLEMEN,

IT was for the landable purpose of exciting a spi|rit of emulation and enquiry, among the mem|bers of our body, that the founders of our society, instituted an annual oration. The task of prepa|ring, and delivering this exercise, hath devolved, once more, upon me. I have submitted to it, not because I thought myself capable of fulfilling your intentions, but because I wished, by a testimony of my obedience to your requests, to atone for my long absence from the temple of science.

THE subject upon which I am to have the honor of addressing you this evening, is

An enquiry in|to

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the influence of physical causes upon the mo|ral faculty.

BY the moral faculty I mean a power in the hu|man mind of distinguishing and chusing good and evil, or in other words, virtue and vice. It is a native principle, and though it be capable of im|provement by experience and reflection, it is not derived from either of them.—St. Paul, and Ci|cero, give us the most perfect account of it that is to be found in modern or ancient authors.

For when the Gentiles, (says St. Paul) which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves; which shew the works of the law written in their hearts, their consciences also bearing witness, and their thoughts the mean while accusing, or else excusing another.
* 1.1

THE words of Cicero are as follow—

Est igi|tur haec, judices, non scripta, sed nata lex, quam non didicimus, accepimus, legimus, verum ex na|tura ipsa arripuimus, hausimus, expressimus, ad quam non docti, sed facti, non instituti, sed imbuti sumus.
† 1.2 This faculty is often confounded with science, which is a distinct and independent power of the mind. This is evident from the passage

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quoted from the writings of St. Paul, in which conscience is said to be the witness that accuses or excuses us, of a breach of the law written in our hearts. The moral faculty is what the schoolmen call the "regula regulans,"—the conscience is their "regula regulata." Or, to speak in more modern terms, the moral faculty performs the office of a law|giver, while the business of conscience is to perform the duty of a judge. The moral faculty is to the conscience, what taste is to the judgment, and sensation to perception. It is quick in its opera|tions, and like the sensative plant, acts without re|flection, while conscience follows with deliberate steps, and measures all her actions, by the unerring square of right and wrong. The moral faculty exercises itself upon the actions of others. It ap|proves even in books, of the virtues of a Trajan, and disapproves of the vices of a Marius, while conscience confines its operations, only to its own actions. These two powers of the mind are gene|rally in an exact ratio to each other, but they sometimes exist in different degrees in the same per|son. Hence we often find conscience in its full vigor, with a diminished tone, or total absence of the moral faculty.

IT has long been a question among metaphysici|ans, whether the conscience be seated in the will or in the understanding. The controversy can on|ly

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be settled by admitting the will to be the seat of the moral faculty, and the understanding to be the seat of the conscience. The mysterious nature of the union of those two moral principles with the will and understanding, is a subject foreign to the business of the present enquiry.—

AS I consider virtue and vice to consist in action, and not in opinion, and as this action has its seat in the will, and not in the conscience, I shall confine my enquiries chiefly to the influence of physical causes upon that moral power of the mind, which is connected with volition, although many of these causes act likewise upon the conscience, as I shall shew hereafter.—The state of the moral fa|culty is visible in actions, which affect the well-be|ing of society. The state of the conscience is in|visible, and therefore removed beyond our investi|gation.

THE moral faculty has received different names from different authors. It is the "moral sense" of Dr. Hutchison—the "sympathy" of Dr. Adam Smith—the "moral instinct" of Rousseau—and "the light that lighteth every man that cometh in|to the world" of St John. I have adopted the term of moral faculty from Dr. Beattie, because I conceive it conveys with the most perspicuity, the

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idea of a power in the mind, of chusing good and evil.

OUR books of medicine contain many records of the effects of physical causes upon the memory— the imagination—and the judgment. In some in|stances we behold their operation only on one,— in others on two,—and in many cases upon the whole of these faculties. Their derangement has received different names, according to the number or nature of the faculties that are affected. The loss of memory has been called "amnesia"—false judgement upon one subject has been called "me|lancholia"—false judgement upon all subjects has been called "mania"—and a defect of all the three intellectual faculties that have been mentioned, has received the name of "amentia." Persons who labour under the derangement, or want of these powers of the mind, are considered, very properly, as subjects of medicine; and there are many cases upon record that prove, that their diseases have yielded to the healing art.

IN order to illustrate the effects of physical causes upon the moral faculty, it will be neces|sary first to shew their effects upon the memory— the imagination and the judgment; and at the same time to point out the analogy between their opera|tion

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upon the intellectual powers of the mind, and the moral faculty.

1. DO we observe a connection between the intellectual powers, and the degrees of consistency and firmness of the brain in infancy and child|hood?—The same connection has been observed between the strength as well as the progress of the moral faculty in children.

2. DO we observe a certain size of the brain, and a peculiar cast of features, such as the pro|minent eye, and the aquiline nose, to be connected with extraordinary portions of genius?—We ob|serve a similar connection between the figure and temperament of the body, and certain moral facul|ties.—Hence, we often ascribe good temper and benevolence to corpulency, and irascibility to sanguineous habits. Caesar thought himself safe in the friendship of the "sleek-headed" Anthony and Dolabella; but was afraid to trust to the pro|fessions of the slender Cassius.

3. DO we observe certain degrees of the intel|tectual faculties to be hereditary in certain fa|milies? The same observation has been frequently extended to moral qualities—Hence we often find certain virtues and vices as peculiar to families, through all their degrees of consanguinity, and

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duration, as a peculiarity of voice—complexion— or shape.

4. DO we observe instances of a total want of memory—imagination—and judgment, either from an original defect in the stamina of the brain, or from the influence of physical causes?—The same unnatural defect is sometimes observed, and probably from the same causes, of a moral faculty. The celebrated Servin whose character is drawn by the Duke of Sully in his Memoirs, appears to be an instance of the total absence of the moral faculty, while the chasm, produced by this defect, seems to have been filled up by a more than com|mon extension of every other power of his mind. I beg leave to repeat the history of this prodigy of vice and knowledge.—

Let the reader re|present to himself a man of a genius so lively, and of an understanding so extensive, as rendered him scarce ignorant of any thing that could be known —of so vast and ready a comprehension, that he immediately made himself master of whatever he attempted—and of so prodigious a memory, that he never forgot what he once learned. He possessed all parts of philosophy, and the ma|thematics, particularly fortification and drawing. Even in theology he was so well skilled, that he was an excellent preacher, whenever he had

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a mind to exert that talent, and an able disput|ant, for and against the reformed religion indif|ferently. He not only understood Greek—He|brew— and all the languages which we call learned, but also all the different jargons, or modern dialects. He accented and pronounced them so naturally, and so perfectly imitated the gestures and manners both of the several nations of Europe, and the particular provinces of France, that he might have been taken for a native of all, or any of these countries: and this quality he applied to counterfeit all sorts of per|sons, wherein he succeeded wonderfully. He was moreover the best comedian, and the greatest droll that perhaps ever appeared. He had a ge|nius for poetry, and had wrote many verses. He played upon almost all instruments—was a perfect master of music—and sung most agree|ably and justly. He likewise could say mass, for he was of a disposition to do, as well as to know, all things. His body was perfectly well suited to his mind. He was light, nimble, and dexterous, and fit for all exercises. He could ride well, and in dancing, wrestling, and leap|ing, he was admired. There are not any re|creative games that he did not know, and he was skilled in almost all mechanic arts.—But now for the reverse of the medal. Here it ap|peared,

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that he was treacherous—cruel—cow|ardly—deceitful—a liar—a cheat—a drunkard and a glutton—a sharper in play—immersed in every species of vice—a blasphemer—an atheist. —In a word, in him might be found all the the vices that are contrary to nature—honour— religion—and society,—the truth of which he himself evinced with his latest breath; for he died in the flower of his age, in a common bro|thel, perfectly corrupted by his debaucheries, and expired with the glass in his hand, cursing, and denying God* 1.3.

IT was probably a state of the human mind such as have been described, that our Saviour alluded to in the disciple, who was about to betray him, when he called him "a devil." Perhaps the essence of depravity in infernal spirits, consists in their being wholly devoid of a moral faculty. In them the will has probably lost the power of chusing† 1.4, as well as the capacity of enjoying moral good. It is true, we read of their trembling in a belief of the existence of a God, and of their anticipating future punishment

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by asking, whether they were to be tormented be|fore their time: But this is the effect of consci|ence, and hence arises another argument in favour of this judicial power of the mind, being distinct from the moral faculty. It would seem as if the Supreme Being had preserved the moral faculty in man from the ruins of his fall, on purpose to guide him back again to Paradise, and at the same time had constituted the conscience, both in men and in fallen spirits, a kind of royalty in his moral empire, on purpose to shew his property in all in|telligent creatures, and their original resemblance to himself. Perhaps the essence of moral depra|vity in man consists in a total, but temporary sus|pension of the power of conscience. Persons in this situation are emphatically said in the scriptures to be "past feeling"—and to have their consci|ences feared, with a "hot iron"—they are likewise said to be "twice dead"—that is, the same torpor or moral insensibility, has seized both the moral faculty and the conscience.

5. DO we ever observe instances of the existence of only one of the three intellectual powers of the mind that have been named, in the absence of the other two? We observe something of the same kind with respect to the moral faculty. I once knew a man, who discovered no one mark of rea|son,

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who possessed the moral sense or faculty in so high a degree, that he spent his whole life in acts of benevolence. He was not only inoffensive, (which is not always the case with idiots) but he was kind and affectionate to every body. He had no ideas of time, but what were suggested to him by the returns of the stated periods for public wor|ship, in which he appeared to take great delight. He spent several hours of every day in devotion, in which he was so careful to be private, that he was once found in the most improbable place in the world for that purpose, viz. in an oven.

6. DO we observe the memory, the imagina|tion and the judgment, to be affected by diseases, particularly by fevers and madness? Where is the physician, who has not seen the moral faculty af|fected from the same causes! How often do we see the temper wholly changed by a fit of sick|ness! And now often do we hear persons of the most delicate virtue, utter speeches in the delirium of a fever, that are offensive to decency, or good manners! I have heard a well attested history of a clergyman of the most exemplary moral charac|ter, who spent the last moments of a fever which deprived him both of his reason and his life, in profane cursing and swearing. I once attended a young woman in a nervous fever, who discovered

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after her recovery, a loss of her former habit of veracity. Her memory (a defect of which, might be suspected of being the cause of this vice) was in every respect as perfect as it was before the at|tack of the fever* 1.5. The instances of immorality in maniacs, who were formerly distinguished for the opposite character, are so numerous, and well known, that it will not be necessary to select any cases, to establish the truth of the proposition con|tained under this head.

7. DO we observe any of the three intellectual powers that have been named, enlarged by dis|eases? Patients in the delirium of a fever, often discover extraordinary flights of imagination, and madmen often astonish us with their wonderful acts of memory. The same enlargement, some|times, appears in the operations of the moral fa|culty. I have more than once heard the most sublime discourses on morality in the cell of an hos|pital, and who has not seen instances of patients in acute diseases, discovering degrees of benevo|lence

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and integrity, that were not natural to them in the ordinary course of their lives?* 1.6

8. DO we ever observe a partial insanity, or false perception on one subject, while the judg|ment is sound and correct, upon all others? We perceive, in some instances, a similar defect in the moral faculty. There are persons who are moral in the highest degree, as to certain duties, who nevertheless live under the influence of some one vice. I knew an instance of a woman, who was ex|emplary in her obedience to every command of the moral law, except one. She could not refrain from stealing. What made this vice the more remark|able was, that she was in easy circumstances, and not addicted to extravagance in any thing. Such was her propensity to this vice, that when she could lay her hands upon nothing more valuable, she would often, at the table of a friend, fill her pockets secretly with bread. As a proof that her judgment was not affected by this defect in her moral faculty, she would both confess and lament her crime, when detected in it.

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9. DO we observe the imagination in many in|stances to be affected with apprehensions of dan|gers that have no existence? In like manner we observe the moral faculty to discover a sensibility to vice, that is by no means proportioned to its de|grees of depravity. How often do we see persons labouring under this morbid sensibility of the mo|ral faculty, refuse to give a direct answer to a plain question, that related perhaps only to the wea|ther, or to the hour of the day, lest they should wound the peace of their minds by telling a false|hood!

10. DO dreams affect the memory—the imagin|ation—and the judgment? Dreams are nothing but incoherent ideas, occasioned by partial or im|perfect sleep. There is a variety in the suspension of the powers of the mind in this state of the sys|tem. In some cases the imagination only is de|ranged in dreams—in others the memory is affect|ed—and in others the judgment.—But there are cases, in which the change that is produced in the state of the brain, by means of sleep, affects the moral faculty likewise; hence we sometimes dream of doing and saying things when asleep, which we shudder at, as soon as we awake. This supposed defection from virtue, exists frequently in dreams where the memory and judgment are

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scarcely impaired. It cannot therefore be ascribed to the desertion of those two powers of the mind.

11. DO we read, in the accounts of travellers, of men, who in respect of intellectual capacity and enjoyments, are but a few degrees above brutes? We read likewise of a similar degradation of our species, in respect to moral capacity and feeling. Here it will be necessary to remark, that the low degrees of moral perception, that have been disco|vered in certain African and Russian tribes of men, no more invalidate our proposition of the universal and essential existence of a moral faculty in the human mind, than the low state of their intellects prove, that reason is not natural to man. Their perceptions of good and evil are in an exact pro|portion to their intellectual powers. But I will go further, and admit with Mr. Locke* 1.7, that some savage nations are totally devoid of the moral fa|culty, yet it will by no means follow, that this was the original constitution of their minds. The appetite for certain aliments is uniform among all mankind. Where is the nation and the individual, in their primitive state of health, to whom bread is not agreeable? But if we should find savages, or

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individuals, whose stomachs have been so disorder|ed by intemperance, as to refuse this simple and wholesome article of diet, shall we assert, that this was the original constitution of their appetites?— By no means. As well might we assert, because savages destroy their beauty by painting and cut|ting their faces, that the principles of taste do not exist naturally in the human mind. It is with vir|tue as with fire. It exists in the mind, as fire does in certain bodies in a latent or quiescent state. As collision renders the one sensible, so education renders the other visible. It would be as absurd to maintain, because olives become agreeable to many people from habit, that we have no natural appetites for any other kind of food, as to assert that any part of the human species exist without a moral principle, because in some of them, it has wanted causes to excite it into action, or has been perverted by example. There are appetites that are wholly artificial. There are tastes so entirely vitiated, as to perceive beauty in deformity. There are torpid and unnatural passions. Why, under certain unfavourable circumstances, may there not exist also a moral faculty, in a state of sleep, or subject to mistakes?

THE only apology I shall make, for presuming to differ from that justly-celebrated oracle, who first

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unfolded to us a map of the intellectual world, shall be, that the eagle eye of genius often darts its views beyond the notice of facts, which are accommodated to the slender organs of percep|tion of men, who possess no other talent than that of observation.

IT is not surprising, that Mr. Locke has con|founded this moral principle with reason, or that Lord Shaftsbury has confounded it with taste, since all three of these faculties agree in the objects of their approbation, notwithstanding they exist in the mind independent of each other. The fa|vorable influence which the progress of science and taste has had upon the morals, can be ascribed to nothing else, but to the perfect union that subsists in nature between the dictates of reason—of taste—and of the moral faculty. Why has the spirit of humanity made such rapid progress for some years past in the courts of Europe? It is be|cause kings and their ministers have been taught to reason upon philosophical subjects.—Why have indecency and profanity been banished from the stage in London and Paris? It is because immo|rality is an offence against the highly cultivated taste of the French and English nations.

It must afford great pleasure to the lovers of virtue, to behold the depth and extent of this

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moral principle in the human mind. Happily for the human race, the intimations of duty and the road to happiness are not left to the slow opera|tions or doubtful inductions of reason, nor to the precarious decisions of taste! Hence we often find the moral faculty in a state of vigor, in persons in whom reason and taste exist in a weak, or in an uncultivated state. It is worthy of notice like|wise, that while second thoughts are best in mat|ters of judgment, first thoughts are always to be preferred in matters that relate to morality. Se|cond thoughts, in these cases, are generally parlies between duty and corrupted inclinations. Hence Rousseau has justly said, that "a well regulated moral instinct is the surest guide to happiness."

IT must afford equal pleasure to the lovers of virtue to behold, that our moral conduct and hap|piness are not committed to the determination of a single legislative power.—The conscience, like a wise and faithful legislative council, performs the office of a check upon the moral faculty, and thus prevents the fatal consequences of immoral actions.

AN objection, I foresee, will arise to the doc|trine of the influence of physical causes upon the moral faculty, from its being supposed to favor the

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opinion of the materiality of the soul. But I do not see that this doctrine obliges us to decide upon the question of the nature of the soul, any more than the facts which prove the influence of physi|cal causes upon the memory—the imagination— or the judgment. I shall, however remark upon this subject, that the writers in favor of the im|mortality of the soul have done that truth great in|jury, by connecting it necessarily with its immateri|ality. The immortality of the soul depends upon the will of the Deity, and not upon the supposed properties of spirit. Matter is in its own nature as immortal as spirit. It is resolveable by heat and mixture into a variety of forms; but it requires the same Almighty hand to annihilate it, that it did to create it. I know of no arguments to prove the immortality of the soul, but such as are de|rived from the Christian revelation* 1.8. It would be as reasonable to assert, that the bason of the ocean is immortal, from the greatness of its capa|city to hold water; or that we are to live for ever in this world, because we are afraid of dying, as to maintain the immortality of the soul, from the greatness of its capacity for knowledge and hap|piness, or from its dread of annihilation.

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I remarked in the beginning of this discourse, that persons who were deprived of the just exer|cise of memory—imagination—or judgment, were proper subjects of medicine; and that there are many cases upon record which prove, that the diseases from the derangement of these faculties, have yielded to the healing art.

IT is perhaps only because the disorders of the moral faculty, have not been traced to a connec|tion with physical causes, that medical writers have neglected to give them a place in their sys|tems of nosology, and that so few attempts have been hitherto made, to lessen or remove them by physical as well as rational and moral remedies.

I shall not attempt to derive any support to my opinions, from the analogy of the influence of physical causes upon the temper and conduct of brute animals. The facts which I shall produce in favor of the action of these causes upon morals in the human species, will, I hope, render unne|cessary the arguments that might be drawn from that quarter.

I am aware, that in venturing upon this subject, I step upon untrodden ground.——I feel as Aeneas did, when he was about to enter the gates of A|vernus, but without a Sibyl to instruct me in the

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mysteries that are before me. I foresee, that men who have been educated in the mechanical habits of adopting popular or established opinions, will revolt at the doctrine I am about to deliver— while men of sense and genius will hear my propo|sitions with candor, and if they do not adopt them, will commend that boldness of enquiry, that prompted me to broach them.

I shall begin with an attempt to supply the de|fects of nosological writers, by naming the partial or weakened action of the moral faculty, MI|CRONOMIA. The total absence of this faculty, I shall call ANOMIA. By the law, referred to in these new genera of vesaniae, I mean the law of nature written in the human heart, and which I formerly quoted from the writings of St. Paul.

IN treating of the effects of physical causes up|on the moral faculty, it might help to extend our ideas upon this subject, to reduce virtues and vi|ces to certain species, and to point out the effects of particular species of virtue and vice; but this would lead us into a field too extensive for the li|mits of the present enquiry. I shall only hint at a few cases, and have no doubt but the ingenuity of my auditors will supply my silence, by applying the rest.

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IT is immaterial, whether the physical causes that are to be enumerated, act upon the moral fa|culty through the medium of the senses—the pas|sions—the memory—or the imagination. Their influence is equally certain, whether they act as remote, pre-disposing, or occasional causes.

1. THE effects of CLIMATE upon the moral faculty claim our first attention. Not only indivi|duals, but nations, derive a considerable part of their moral, as well as intellectual character, from the different portions they enjoy of the rays of the sun. Irascibility—levity—timidity—and indolence, tempered with occasional emotions of benevo|lence, are the moral qualities of the inhabitants of warm climates, while selfishness tempered with sincerity and integrity, form the moral cha|racter of the inhabitants of cold countries.— The state of the weather, and the seasons of the year also, have a visible effect upon moral sensibility. The month of November, in Great Britain, rendered gloomy by constant fogs and rains, has been thought to favor the perpetration of the worst species of murder, while the vernal sun, in middle latitudes, has been as gene|rally

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remarked for producing gentleness and be|nevolence.

2. THE effects of DIET upon the moral faculty are more certain, though less attended to, than the effects of climate. "Fullness of bread," we are told, was one of the predisposing causes of the vices of the cities of the plain. The fasts so often inculcated among the Jews, were intended to les|sen the incentives to vice; for pride—cruelty— and sensuality, are as much the natural conse|quences of luxury, as apoplexies and palsies. But the quality as well as the quantity of aliment, has an influence upon morals; hence we find the mo|ral diseases that have been mentioned, are most frequently the offspring of animal food. The prophet Isaiah seems to have been sensible of this, when he ascribes such salutary effects to a tempe|rate and vegetable diet. "Butter and honey shall he eat," says he, "that he may know to refuse the evil, and to chuse the good."—But we have many facts which prove the efficacy of a vegeta|ble diet upon the passions. Dr. Arbuthnot assures us, that he cured several patients of irascible tem|pers, by nothing but a prescription of this simple and temperate regimen.

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3. THE effects of CERTIAN DRINKS upon the moral faculty are not less observable, than upon the intellectual powers of the mind. Fermented liquors of a good quality, and taken in a mode|rate quantity, are favorable to the virtues of can|dor, benevolence and generosity; but when they are taken in excess, or when they are of a bad quality, and drank even in a moderate quantity, they seldom fail of rousing every latent spark of vice into action. The last of these facts is so noto|rious, that when a man is observed to be ill-natur|ed or quarrelsome in Portugal, after drinking, it is common in that country to say, that "he has drank bad wine." While occasional fits of in|toxication produce ill temper in many people, ha|bitual drunkenness (which is generally produced by distilled spirits) never fails to eradicate veraci|ty and integrity from the human mind. Perhaps this may be the reason why the Spaniards, in an|cient times, never admitted a man's evidence in a court of justice, who had been convicted of drun|kenness.—Water is the universal sedative of tur|bulent passions—it not only promotes a general equanimity of temper, but it composes anger. I have heard several well-attested cases, of a draught of cold water having suddenly composed this vio|lent passion, after the usual remedies of reason had been applied to no purpose.

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4. EXTREME HUNGER produces the most un|friendly effects upon moral sensibility. It is imma|terial, whether it acts by inducing a relaxation of the solids, or an acrimony of the fluids, or by the combined operation of both those physical causes. The Indians in this country whet their appetites for that savage species of war, which is peculiar to them, by the stimulus of hunger; hence, we are told, they always return meagre and emaci|ated from their military excursions. In civilized life we often behold this sensation an overbalance for the restraints of moral feeling; and perhaps this may be the reason, why poverty, which is the most frequent parent of hunger, disposes so gene|rally to theft; for the character of hunger is taken from that vice—It belongs to it "to break through stone walls." So much does this sensation predo|minate over reason and moral feeling, that Cardi|nal de Retz suggests to politicians, never to risk a motion in a popular assembly, however wise or just it may be, immediately before dinner.—That temper must be uncommonly guarded, which is not disturbed by long abstinence from food. One of the worthiest men I ever knew, who made his breakfast his principal meal, was peevish and disa|greeable to his friends and family, from the time he left his bed, till he sat down to his morning re|past, after which, chearfulness sparkled in his

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countenance, and he became the delight of all around him.

5. I hinted formerly, in proving the analogy between the effects of DISEASES upon the intel|lects, and upon the moral faculty, that the latter was frequently impaired by fevers and madness. I beg leave to add further upon this head, that not only fevers and madness, but the hysteria and hypochondriasis, as well as all those states of the body, whether idiopathic or symptomatic, which are accompanied with preternatural irritability— sensibility—torpor—stupor—or mobility of the nervous system, dispose to vice, either of the body or of the mind. It is in vain to attack these vices with lectures upon morality. They are only to be cured by medicine,—particularly by exer|cise,—the cold bath,—and by a cold or warm at|mosphere. The young woman, whose case I men|tioned formerly, that lost her habit of veracity by a nervous fever, recovered this virtue, as soon as her system recovered its natural tone, from the cold weather which happily succeeded her fever* 1.9.

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6. IDLENESS is the parent of every vice. It is mentioned in the Old Testament as another of the the predisposing causes of the vices of the cities of the plain. LABOR of all kinds, favors and facili|tates the practice of virtue. The country life is a happy life; chiefly, because its laborious employ|ments are favourable to virtue, and unfriendly to vice. It is a common practice, I have been told, for the planters in the Southern States, to consign a house slave, who has become vicious from idle|ness, to the drudgery of the field, in order to re|form him. The Bridewells and workhouses of all civilized countries prove, that LABOR is not only

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a very severe, but the most benevolent of all pu|nishments, in as much as it is one of the most suit|able means of reformation. Mr Howard tells us in his History of Prisons, that in Holland it is a common saying, "Make men work and you will make them honest." And over the rasp and spin-house at Groeningen, this sentiment is expressed (he tells us) by a happy motto:

"Vitiorum semina—otium—labore exhauriendum."
The effects of steady labor in early life, in creating virtuous habits, is still more remarkable. The late Anthony Benezet of this city, whose benevolence was the sentinel of the virtue, as well as of the happiness of his country, made it a constant rule in binding out poor children, to avoid putting them into wealthy families, but always preferred ma|sters for them who worked themselves, and who obliged these children to work in their presence. If the habits of virtue, contracted by means of this apprenticeship to labor, are purely mechanical, their effects are, nevertheless, the same upon the happiness of society, as if they flowed from prin|ciple. The mind, moreover, when preserved by these means from weeds, becomes a more mellow soil afterwards, for moral and rational improve|ment.

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7. THE effects of EXCESSIVE SLEEP are intimate|ly connected with the effects of idleness upon the moral faculty,—hence we find that moderate, and even scanty portions of sleep, in every part of the world, have been found to be friendly, not only to health and long life, but in many instances to morality. The practice of the Monks, who of|ten sleep upon a floor, and who generally rise with the sun, for the sake of mortifying their sensual ap|petites, is certainly founded in wisdom, and has of|ten produced the most salutary moral effects.

8. THE effects of BODILY PAIN upon the mo|ral, are not less remarkable than upon the intel|lectual powers of the mind. The late Dr Gregory, of the university of Edinburgh, used to tell his pupils, that he always found his perceptions quick|er in a fit of the gout, than at any other time. The pangs which attend the dissolution of the body, are often accompanied with conceptions and expressions upon the most ordinary subjects, that discover an uncommon elevation of the intellectual powers. The effects of bodily pain are exactly the same in rousing and directing the moral facul|ty. Bodily pain, we find, was one of the reme|dies employed in the Old Testament, for extirpat|ing vice and promoting virtue: and Mr Howard tells us, that he saw it employed successfully as a

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means of reformation, in one of the prisons which he visited. If pain has a physical tendency to cure vice, I submit it to the consideration of parents and legislators, whether moderate degrees of cor|poral punishments, inflicted for a great length of time, would not be more medicinal in their effects, than the violent degrees of them, which are of short duration.

9. TOO much cannot be said in favour of CLEANLINESS, as a physical means of promoting virtue. The writings of Moses have been called by military men, the best "orderly book" in the world. In every part of them we find cleanliness inculcated with as much zeal, as if it was part of the moral, instead of the levitical law. Now, it is well-known, that the principal design of every pre|cept and rite of the ceremonial parts of the Jew|ish religion, was to prevent vice, and to promote virtue. All writers upon the leprosy, take notice of its connection with a certain vice. To this dis|ease gross animal food, particularly swine's flesh, and a dirty skin, have been thought to be predispo|sing causes—hence the reason, probably, why pork was forbidden, and why ablutions of the body and limbs were so frequently inculcated by the Jewish law. Sir John Pringle's remarks, in his Oration upon Captain Cook's Voyage, deli|vered

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before the Royal Society in London, are very pertinent to this part of our subject.—

Cleanliness (says he) is conducive to health, but it is not so obvious, that it also tends to good or|der and other virtues. Such (meaning the ship's crew) as were made more cleanly, became more sober, more orderly, and more attentive to duty.
The benefit to be derived by parents and schoolmasters from attending to these facts, is too obvious to be mentioned.

10. I hope I shall be excused in placing SO|LITUDE among the physical causes which influ|ence the moral faculty, when I add, that I confine its effects to persons who are irreclaimable by ra|tional or moral remedies. Mr Howard informs us, that the chaplain of the prison at Liege in Germany assured him,

that the most refractory and turbulent spirits, became tractable and sub|missive, by being closely confined for four or five days.
—In bodies that are predisposed to vice, the stimulus of cheerful, but much more of pro|fane society and conversation, upon the animal spi|rits, becomes an exciting cause, and like the stroke of the flint upon the steel, renders the sparks of vice both active and visible. By removing men out of the reach of this exciting cause, they are often re|formed, especially if they are confined long enough

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to produce a sufficient chasm in their habits of vice. Where the benefit of reflection, and instruction from books, can be added to solitude and confine|ment, their good effects are still more certain. To this philosophers and poets in every age have as|sented, by describing the life of a hermit as a life of passive virtue.

11. CONNECTED with solitude, as a mechanical means of promoting virtue, SILENCE deserves to be mentioned in this place. The late Dr Fother|gill, in his plan of education for that benevolent institution at Ackworth, which was the last care of his useful life, says every thing that can be said in favour of this necessary discipline, in the follow-words.

To habituate children from their early infancy, to silence and attention, is of the great|est advantage to them, not only as a preparative to their advancement in a religious life, but as the groundwork of a well cultivated under|standing. To have the active minds of children put under a kind of restraint—to be accustomed to turn their attention from external objects, and habituated to a degree of abstracted quiet, is a matter of great consequence, and lasting be|nefit to them. Although it cannot be supposed, that young and active minds are always engaged in silence as they ought to be, yet to be accus|tomed

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thus to quietness, is no small point gained towards fixing a habit of patience, and recollec|tion, which seldom forsakes those who have been properly instructed in this entrance of the school of wisdom, during the residue of their days.

FOR the purpose of acquiring this branch of educa|tion, children cannot associate too early, nor too often with their parents, or with their superiors in age, rank, and wisdom.

12. THE effects of music upon the moral faculty, have been felt and recorded in every country. Hence we are able to discover the virtues and vi|ces of different nations, by their tunes, as certainly as by their laws. The effects of music, when sim|ply mechanical, upon the passions, are powerful and extensive. But it remains yet to determine the degrees of moral ecstasy, that may be produ|ced by an attack upon the ear, the reason, and the moral principle, at the same time, by the com|bined powers of music and eloquence.

13. THE eloquence of the pulpit is nearly allied to music in its effects upon the moral faculty. It is true, there can be no permanent change in the temper, and moral conduct of a man, that is not derived from the understanding and the will; but

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we must remember, that these two powers of the mind are most assailable, when they are attacked through the avenue of the passions; and these, we know, when agitated by the powers of eloquence, exert a mechanical action upon every power of the soul. Hence we find in every age and country, where christianity has been propagated, the most accomplished orators have generally been the most successful reformers of mankind. There must be a defect of eloquence in a preacher, who with the resources for oratory, which are contained in the Old and New Testaments, does not produce in every man who hears him, at least a temporary love of virtue. I grant that the eloquence of the pulpit alone, cannot change men into christians, but it certainly possesses the power of changing brutes into men. Could the eloquence of the stage be properly directed, it is impossible to con|ceive the extent of its mechanical effects upon mo|rals. The language and imagery of a Shakespeare, upon moral and religious subjects, poured upon the passions and the senses, in all the beauty and va|riety of dramatic representation! Who could resist, or describe their effects?

14. ODORS of various kinds have been observ|ed to act in the most sensible manner upon the mo|ral faculty. Brydone tells us, upon the authority of a celebrated philosopher in Italy, that the pecu|liar

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wickedness of the people who live in the neigh|bourhood of Aetna and Vesuvius, is occasioned chiefly by the smell of the sulphur and of the hot exhalations which are constantly discharged from those volcanos. Agreeable odors, seldom fail to inspire serenity, and to compose the angry spirits— Hence the pleasure, and one of the advantages of a flower garden. The smoke of tobacco is likewise of a composing nature, and tends not only to pro|duce what is called a train in perception, but to hush the agitated passions into silence and order— Hence the propriety of connecting the pipe or se|gar and the bottle together, in public company.

15. IT will be sufficient only to mention light and darkness, to suggest facts in favor of the influence of each of them upon moral sensibility. How of|ten do the peevish complaints of the night in sick|ness, give way to the composing rays of the light of the morning? Othello cannot murder Desde|mona by candle-light, and who has not felt the effects of a blazing fire, upon the gentle passions?

16. IT is to be lamented, that no experiments have as yet been made, to determine the effects of all the different species of Airs, which chemistry has lately discovered, upon the moral faculty. I have authority, from actual experiments, only to declare, that Dephlogisticated Air, when taken in|to

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the lungs, produces cheerfulness, gentleness, and serenity of mind.

17. WHAT shall we say of the effects of Medi|cines upon the moral faculty? That many substances in the materia medica act upon the intellects, is well known to physicians. Why should it be thought impossible for medicines, to act in like manner up|on the moral faculty? May not the earth contain in its own bowels, or upon its surface, antidotes? But I will not blend facts with conjectures. Clouds and darkness still hang upon this part of my sub|ject.

LET it not be suspected from any thing that I have delivered, that I suppose the influence of phy|sical causes upon the moral faculty, renders the agency of divine influence unnecessary to our mo|ral happiness. I only maintain, that the opera|tions of the divine government are carried on in the moral, as in the natural world, by the instru|mentality of second causes. I have only trodden in the footsteps of the inspired writers; for most of the physical causes I have enumerated, are con|nected with moral precepts, or have been used as the means of reformation from vice, in the Old and New Testaments. To the cases that have been mentioned I shall only add, that Nebuchad|nezzar was cured of his pride, by means of solitude

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and a vegetable diet.—Saul was cured of his evil spirit, by means of David's harp, and St. Paul ex|pressly says,

I keep my body under, and bring it into subjection, lest that by any means, when I have preached to others, I myself should be a cast-away.
But I will go one step further, and add in favor of divine influence upon the moral principle, that in those extraordinary cases, where bad men are suddenly reformed, without the in|strumentality of physical, moral, or rational causes, I believe that the organization of those parts of the body, which form the link that binds it to the soul, undergoes a physical change;* 1.10 and hence the ex|pression of a "new creature," which is made use of in the scriptures to denote this change, is pro|per in a literal, as well as a figurative sense. It is probably the beginning of that perfect renovation of the human body, which is predicted by St Paul in the following words—
For our conversation is in heaven, from whence we look for the Savi|our,

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who shall change our vile bodies, that they may be fashioned according to his own glorious body.
I shall not pause to defend myself against the charge of enthusiasm in this place; for the age is at length arrived, so devoutly wished for by Dr. Cheyne, in which men will not be de|terred in their researches after truth, by the ter|ror of odious or unpopular names.

I cannot help remarking under this head, that if the conditions of those parts of the human body which are connected with the human soul, influence morals, the same reason may be given for a virtu|ous education, that has been admitted for teaching music and the pronunciation of foreign languages, in the early and yielding state of those organs, which form the voice and speech. Such is the effect of a moral education, that we often see its fruits in advanced stages of life, after the religious principles which were connected with it, have been renounced; just as we perceive the same care in a surgeon in his attendance upon patients, after the sympathy which first produced this care, has ceas|ed to operate upon his mind. The boasted moral|ity of the Deists, is I believe, in most cases, the off|spring of habits, produced originally by the prin|ciples and precepts of Christianity. Hence appears the wisdom of Solomon's advice—

Train up a

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child in the way he should go, and when he is old he will not,
I had almost said, he cannot "depart from it."

THUS have I enumerated the principal causes, which act mechanically upon morals. If from the combined action of physical powers that are oppo|sed to each other, the moral faculty should become stationary, or if the virtue or vice produced by them, should form a neutral quality, composed of both of them, I hope it will not call in question the truth of our general propositions. I have only mentioned the effects of physical causes in a simple state.* 1.11

IT might help to enlarge our ideas upon this subject, to take notice of the influence of the dif|ferent stages of society, of agriculture and com|merce, of soil and situation, of the different degrees of cultivation of taste, and of the intellectual pow|ers, of the different forms of government, and last|ly, of the different professions and occupations of mankind, upon the moral faculty; but as these act

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indirectly only, and by the intervention of causes that are unconnected with matter, I conceive they are foreign to the business of the present enquiry. If they should vary the action of the simple physi|cal causes in any degree, I hope it will not call in question the truth of our general propositions, any more than the compound action of physical powers, that are opposed to each other. There remain on|ly a few more causes which are of a compound nature, but so nearly related to those, which are purely mechanical, that I shall beg leave to trespass upon your patience, by giving them a place in my oration.

THE effects of imitation, habit and association upon morals, would furnish ample matter for inve|stigation. Considering how much the shape, tex|ture, and conditions of the human body, influence morals, I submit it to the consideration of the in|genious, whether in our endeavours to imitate moral examples, some advantage may not be deri|ved, from our copying the features and external manners of the originals. What makes the suc|cess of this experiment probable is, that we gene|rally find men, whose faces resemble each other, have the same manners and dispositions. I infer the possibility of success in an attempt to imitate originals in a manner that has been mentioned, from the facility with which domestics acquire a

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resemblance to their masters and mistresses, not on|ly in manners, but in countenance, in those cases where they are tied to them, by respect, and affec|tion.—Husbands and wives also where they pos|sess the same species of face, under circumstances of mutual attachment, often acquire a resemblance to each other.

FROM the general detestation in which hypocri|sy is held both by good and bad men, the mechani|cal effects of habit upon virtue, have not been suffi|ciently explored. There are, I am persuaded, ma|ny instances where virtues have been assumed by accident, or necessity, which have become real from habit, and afterwards derived their nourishment from the heart. Hence the propriety of Hamlet's advice to his mother—

"Assume a virtue, if you have it not, "That monster, custom, who all sense doth eat, "Of habits evil, is angel, yet in this, "That to the use of actions fair and good, "He likewise gives a frock or livery, "That aptly is put on—Refrain to-night, "And that shall lend a kind of easiness, "To the next abstinence; the next more easy, "For use can almost change the stamp of na|ture,

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"And master even the devil, or throw him out, "With wondrous petency."

THE influence of ASSOCIATION upon morals, opens an ample field for enquiry. It is from this principle, that we explain the reformation from theft and drunkenness in servants which we some|times see produced by a draught of spirits in which tartar emetic had been secretly dissolved. The recollection of the pain and sickness excited by the emetic, naturally associates itself with the spi|rits, so as to render them both equally the objects of aversion. It is by calling in this principle only, that we can account for the conduct of Moses, in grinding the golden calf into a powder, and afterwards dissolving it (probably by means of hepar sulphuris) in water, and compelling the children of Israel to drink of it, as a punishment for their idolatry. This mixture is bitter and nau|seating in the highest degree. An inclination to idolatry, therefore, could not be felt without be|ing associated with the remembrance of this disa|greeable mixture, and of course being rejected, with equal abhorrence. The benefit of corporal punishments, when they are of a short duration, depends in part up their being connected by time and place, with the crimes for which they are in|flicted. Quick as the thunder follows the light|ning,

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if it were possible, should punishments fol|low the crimes, and the advantage of association would be more certain, if the spot where they were committed, were made the theatre of their expiation. It is from the effects of this association, probably, that the change of place and company produced by exile and transportation, has so often reclaimed bad men, after moral—rational—and physical means of reformation had been used to no purpose.

AS SENSIBILITY is the avenue to the moral fa|culty, every thing which tends to diminish it tends also to injure morals.—The Romans owed much of their corruption to the sights of the contests of their gladiators, and of criminals, with wild beasts. For these reasons, executions should never be pub|lic. Indeed, I believe there are no public punish|ments of any kind, that do not harden the hearts of spectators, and thereby lessen the natural horror which all crimes at first excite in the human mind.

CRUELTY to brute animals is another means of destroying moral sensibility. The ferocity of sa|vages has been ascribed in part to their peculiar mode of subsistence. Mr. Hogarth points out in his ingenious prints, the connection between cru|elty to brute animals in youth, and murder in man|hood.

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The Emperor Domitian prepared his mind by the amusement of killing flies, for all those bloody crimes which afterwards disgraced his reign. I am so perfectly satisfied of the truth of a a connection between morals, and humanity to brutes, that I shall find it difficult to restrain my idolatry for that legislature, that shall first establish a system of laws, to defend them from outrage and oppression.

IN order to preserve the vigor of the moral fa|culty, it is of the utmost consequence to keep young people as ignorant as possible of those crimes, that are generally thought most disgraceful to human na|ture. Suicide, I believe, is often propagated by means of news-papers. For this reason, I should be glad to see the proceedings of our courts kept from the public eye, when they expose, or punish monstrous vices.

THE last mechanical method of promoting mo|rality that I shall mention, is to keep sensibility alive, by a familiarity with scenes or distress from poverty and disease. Compassion never awakens in the human bosom, without being accompanied by a train of sister virtues—hence the wise man justly remarks, that "By the sadness of the coun|tenance, the heart is made better."

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A late French writer in his prediction of events that are to happen in the year 4000, says

That mankind in that aera shall be so far improved by religion and government, that the sick and the dying, shall no longer be thrown together with the dead, into splendid houses, but shall be re|lieved and protected in a connection with their families and society.
For the honor of humanity, an institution * 1.12 destined for that distant period, has lately been founded in this city, that shall perpetuate the year 1786 in the history of Pennsylvania. Here the feeling heart—the tearful eye—and the cha|ritable hand, may always be connected together, and the flame of sympathy, instead of being extin|guished in taxes, or expiring in a solitary blaze by a single contribution, may be kept alive, by con|stant exercise. There is a necessary connection be|tween animal sympathy and good morals. The priest and the levite, in the New Testament, would probably have relieved the poor man who fell among thieves, had accident brought them near enough to his wounds. The unfortunate Mrs. Bellamy was rescued from the dreadful pur|pose of drowning herself, by nothing but the dis|tress of a child, rending the air with its cries for

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bread. It is probably owing in some measure to the connection between good morals and sympathy that the fair sex in every age, and country, have been more distinguished for virtue, than men— for how seldom do we hear of a woman, devoid of humanity?—

LASTLY, ATTRACTION, COMPOSITION, and DECOMPOSITION, belong to the passions as well as to matter. Vices of the same species attract each other with the most force—hence the bad consequences of crouding young men (whose pro|pensities are generally the same) under one roof, in our modern plans of education. The effects of composition and decomposition upon vices, appear in the meanness of the school-boy, being often cured by the prodigality of a military life, and by the precipitation, of avarice, which is often pro|duced by ambition and love.* 1.13

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IF physical causes influence morals in the man|ner we have described, may they not also influence religious principles and opinions?—I answer in the affirmative; and I have authoriry, from the records of physic, as well as from my own observa|tions, to declare, that religious melancholy and madness, in all their variety of species, yield with more facility to medicine, than simply to polemical discourses, or to casuistical advice.—But this sub|ject is foreign to the business of the present en|quiry.

FROM a review of our subject, we are led to contemplate with admiration, the curious struc|ture of the human mind. How distinct are the number, and yet how united! How subordinate and yet how coequal are all its powers! How wonderful is the action of the soul upon the body! Of the body upon the soul!—And of the divine spirit upon both! What a mystery is the mind of man to itself!—O! nature!—Or to speak more properly,—O! THOU GOD OF NATURE!—In vain do we attempt to scan THY immensity, or to comprehend THY various modes of existence, when a single particle of light issued from THYSELF, and kindled into intelligence in the bosom of man, thus dazzles and confounds our understanding!—

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THE extent of the moral powers and habits in man is unknown. It is not improbable, but the human mind contains principles of virtue, which have never yet been excited into action. We be|hold with surprise the versatility of the human bo|dy in the exploits of tumblers and rope-dancers. Even the agility of a wild beast has been demon|strated in a girl in France, and an amphibious na|ture has been discovered in the human species, in a young man in Spain. We listen with astonish|ment to the accounts of the memoirs of Mithri|dates, Cyrus, and Servin. We feel a veneration bordering upon divine homage, in contemplating the stupendous understandings of Lord Verulam and Sir Isaac Newton; and our eyes grow dim, in attempting to pursue Shakespeare and Milton in their immeasurable flights of imagination. And if the history of mankind does not furnish similar in|stances of the versatility and perfection of our spe|cies in virtue, it is because the moral faculty has been the subject of less culture and fewer experi|ments than the body, and the intellectual powers of the mind. From what has been said, the rea|son of this is obvious. Hitherto the cultivation of the moral faculty has been the business of pa|rents, schoolmasters and divines* 1.14. But if the

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principles, we have laid down, be just, the im|provement and extension of this principle should be equally the business of the legislator—the na|tural philosopher—and the physician; and a phy|sical regimen should as necessarily accompany a moral precept, as directors with respect to the air—exercise—and diet, generally accompany pre|scriptions for the consumption, and the gout. To encourage us to undertake experiments for the improvement of morals, let us recollect the suc|cess of philosophy in lessening the number, and mitigating the violence of incurable diseases. The intermitting fever, which proved fatal to two of the monarchs of Britain, is now under absolute subjection to medicine. Continual fevers are much less fatal than formerly. The small-pox is disarmed of its mortality by inoculation, and even the tetanus and the cancer have lately re|ceived a check in their ravages upon man|kind.

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But medicine has done more—It has penetrated the deep and gloomy abyss of death, and acquired fresh honours in his cold embraces.—Witness the many hundred peo|ple who have lately been brought back to life, by the successful efforts of the humane societies, which are now established in many parts of Eu|rope, and in some parts of America. Should the same industry and ingenuity, which have produced these triumphs of medicine over diseases and death, be applied to the moral science, it is highly probable, that most of those baneful vices, which deform the the human breast, and convulse the nations of the earth, might be banished from the world. I am not so sanguine as to suppose, that it is possible for man to acquire so much perfection from science, religion, liberty and good govern|ment, as to cease to be mortal; but I am fully persuaded, that from the combined action of causes, which operate at once upon the reason, the moral faculty, the passions, the senses, the brain, the nerves, the blood and the heart, it is possible to produce such a change in his moral character, as shall raise him to a resemblance of angels—nay more, to the likeness of GOD himself. —The State of Pennsylvania still deplores the loss of a man, in whom not only reason and reve|lation,

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but many of the physical causes that have been enumerated, concurred to produce such at|tainments in moral excellency, as have seldom ap|peared in a human being. This amiable citizen, considered his fellow creature, man, as God's ex|tract, from his own works; and whether this image of himself, was cut out from ebony or copper—whether he spoke his own, or a foreign language—or whether he worshipped his Maker with ceremonies, or without them, he still consi|dered him as a brother, and equally the object of his benevolence. Poets and historians, who are to live hereafter, to you I commit his panegyric; and when you hear of a law for abolishing slavery in each of the American States, such as was passed in Pennsylvania, in the year 1780—when you hear of the kings and queens of Europe, publish|ing edicts for abolishing the trade in human souls —and lastly, when you hear of schools and chur|ches with all the arts of civilized life, being esta|blished among the nations of Africa, then remem|ber and record, that this revolution in favour of human happiness, was the effect of the labours— the publications—the private letters—and the pray|ers of ANTHONY BUNEZET* 1.15.—

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I RETURN from this digression, to address my|self in a particular manner to you, VENERABLE SAGES and FELLOW CITIZENS in the REPUBLIC OF LETTERS.—The influence of philosophy, we have been told, has already been felt in courts. To increase, and complete this influence, there is nothing more necessary, than for the numerous

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literary societies in Europe and America, to add the SCIENCE of MORALS to their experiments and enquiries. The godlike scheme of Henry the IV. of France, and of the illustrious Queen Elizabeth of England, for establishing a perpetual peace in Europe, may be accomplished without a system of jurisprudence, by a confederation of learned men, and learned societies. It is in their power, by mul|tiplying the objects of human reason, to bring the monarchs and rulers of the world, under their sub|jection, and thereby to extirpate war—slavery— and capital punishments, from the list of human evils. Let it not be suspected that I detract by this declaration, from the honour of the christian reli|gion. It is true—Christianity was propagated without the aid of human learning; but this was one of those miracles, which was necessary to esta|blish it, and which, by repetition, would cease to be a miracle. They misrepresent the christian re|ligion, who suppose it to be wholly an internal re|velation, and addressed only to the moral powers of the mind. The truths of Christianity afford the greatest scope for the human understanding, and they will become intelligible to us, only in propor|tion as the human genius is stretched by means of philosophy, to its utmost dimensions. Errors may be opposed to errors; but truths, upon all subjects,

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mutually support each other. And perhaps one reason, why some parts of the Christian revelation are still involved in obscurity, may be occasioned by our imperfect knowledge of the phaenomena, and laws of nature. The truths of philosophy and Christianity, dwell alike in the mind of the Deity, and reason and religion are equally the offspring of his goodness. They must, therefore, stand and fall together. By reason, in the present instance, I mean the power of judging of truth, as well as the power of comprehending it. Happy aera!— When the divine and the philosopher shall em|brace each other, and unite their labors, for the reformation and happiness of mankind!—

ILLUSTRIOUS COUNCILLORS and SENATORS of Pennsylvania! * 1.16 I anticipate your candid re|ception of this feeble effort to increase the quan|tity of virtue in our republic. It is not my busi|ness to remind you of the immense resources for greatness, which nature and Providence have be|stowed upon our state. Every advantage which France has derived from being placed in the centre

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of Europe, and which Britain has derived from her mixture of nations, Pennsylvania has opened to her. But my business at present, is to suggest the means of promoting the happiness, not the greatness the state. For this purpose, it is abso|lutely necessary that our government, which unites into one all the minds of the state, should possess, in an eminent degree, not only the understanding, the passions, and the will, but above all, the moral faculty, and the conscience of an individual.—No|thing can be politically right, that is morally wrong; and no necessity can ever sanctify a law, that is contrary to equity. VIRTUE is the soul of a republic. To promote this, laws for the suppression of vice and immorality will be as in|effectual, as the increase and enlargement of gaols. There is but one method of preventing crimes, and of rendering a republican form of govern|ment durable, and that is by disseminating the seeds of virtue and knowledge through every part of the state, by means of proper modes and places of education, and this can be done effectually only, by the interference and aid of the legislature. I am so deeply impressed with the truth of this opinion, that were this evening to be the last of my life, I would not only say to the asylum of my ancestors, and my beloved native country, with the

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patriot of Venice, "Esto perpetua"—But I would add, as the last proof of my affection for her, my parting advice to the guardians of her liberties, "To establish and support PUBLIC SCHOOLS in every part of the state."

Notes

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