To describe, in a general manner, what is the ordinary way of acting to which each virtue would prompt us, is still more easy. It is, indeed, scarce possible to describe the internal sentiment or emotion upon which it is founded, without doing something of this kind. It is impossible by language to express, if I may say so, the invisible features of all the different modifications of passion as they show themselves within. There is no other way of marking and distinguishing them from one another, but by describing the effects which they produce without, the alterations which they occasion in the countenance, in the air and external behaviour, the resolutions they suggest, the actions they prompt to. It is thus that Cicero, in the first book of his Offices, endeavours to direct us to the practice of the four cardinal virtues, and that Aristotle in the practical parts of his Ethics, points out to us the different habits by which he would have us regulate our behaviour, such as liberality, magnificence, magnanimity, and even jocularity and good humour, qualities, which that indulgent philosopher has thought worthy of a place in the catalogue of the virtues, though the lightness of that approbation which we naturally bestow upon them, should not seem to entitle them to so venerable a name.
Such works present us with agreeable and lively pictures of manners. By the vivacity of their descriptions they inflame our natural love of virtue, and increase our abhorrence of vice: by the justness as well as delicacy of their observations they may often help both to correct and to ascertain our natural sentiments with regard to the propriety of conduct, and suggesting many nice and delicate attentions, form us to a more exact justness of behaviour, than what, without such instruction, we should have been apt to think of. In treating of the rules of morality, in this manner, consists the science which is properly called Ethics, a science, which though like criticism, it does not admit of the most accurate precision, is, however, both highly useful and agreeable. It is of all others the most susceptible of the embellishments of eloquence, and by means of them of bestowing, if that be possible, a new importance upon the smallest rules of duty. Its precepts, when thus dressed and adorned, are capable of producing upon the flexibility of youth, the noblest and most lasting impressions, and as they fall in with the natural magnanimity of that generous age, they are able to inspire, for a time at least, the most heroic resolutions, and thus tend both to establish and confirm the best and most useful habits of which the mind of man is susceptible. Whatever precept and exhortation can do to animate us to the practice of virtue, is done by this science delivered in this manner.
II. The second set of moralists, among whom we may count all the casuists of the middle and latter ages of the christian church, as well as all those who in this and in the preceding century have treated of what is called natural jurisprudence, do not content themselves with characterizing in this general manner that tenour of conduct which they would recommend to us, but endeavour to lay down exact and precise rules for the direction of every circumstance of our behaviour. As justice is the only virtue with regard to which such exact rules can properly be given; it is this virtue, that has chiefly fallen under the consideration of those two different sets of writers. They treat of it, however, in a very different manner.
Those who write upon the principles of jurisprudence, consider only what the person to whom the obligation is due, ought to think himself entitled to exact by force; what every impartial spectator would approve of him for exacting, or what a judge or arbiter, to whom he had submitted his case, and who had undertaken to do him justice, ought to oblige the other person to suffer or to perform. The casuists, on the other hand, do not so much examine what it is, that might properly be exacted by force, as what it is, that the person who owes the obligation ought to think himself bound to perform from the most sacred and scrupulous regard to the general rules of justice, and from the most conscientious dread, either of wronging his neighbour, or of violating the integrity of his own character. It is the end of jurisprudence to prescribe rules for the decisions of judges and arbiters. It is the end of casuistry to prescribe rules for the conduct of a good man. By observing all the rules of jurisprudence, supposing them ever so perfect, we should deserve nothing but to be free from external punishment. By observing those of casuistry, supposing them such as they ought to be, we should be entitled to considerable praise by the exact and scrupulous delicacy of our behaviour.
It may frequently happen that a good man ought to think himself bound, from a sacred and conscientious regard to the general rules of justice to perform many things which it would be the highest injustice to extort from him, or for any judge or arbiter to impose on him by force. To give a trite example; a highwayman, by the fear of death, obliges a traveller to promise him a certain sum of money. Whether such a promise, extorted in this manner by unjust force, ought to be regarded as obligatory, is a question that has been very much debated.
If we consider it merely as a question of jurisprudence, the decision can admit of no doubt. It would be absurd to suppose that the highwayman can be entitled to use force to constrain the other to perform. To extort the promise was a crime which deserved the highest punishment, and to extort the performance would only be adding a new crime to the former. He can complain of no injury who has been only deceived by the person by whom he might justly have been killed. To suppose that a judge ought to enforce the obligation of such promises, or that the magistrate ought to allow them to sustain an action at law, would be the most ridiculous of all absurdities. If we consider this question, therefore, as a question of jurisprudence, we can be at no loss about the decision.
But if we consider it as a question of casuistry, it will not be so easily determined. Whether a good man, from a conscientious regard to that most sacred rule of justice, which commands the observance of all serious promises, would not think himself bound to perform, is at least much more doubtful. That no regard is due to the disappointment of the wretch who brings him into this situation, that no injury is done to the robber, and consequently that nothing can be extorted by force, will admit of no sort of dispute. But whether some regard is not, in this case, due to his own dignity and honour, to the inviolable sacredness of that part of his character which makes him reverence the law of truth, and abhor every thing that approaches to treachery and falsehood, may, perhaps, more reasonably be made a question. The casuists accordingly are greatly divided about it. One party, with whom we may count Cicero among the ancients, among the moderns, Puffendorf, Barbeyrac his commentator, and above all the late Dr. Hutcheson, one who in most cases was by no means a loose casuist, determine, without any hesitation, that no sort of regard is due to any such promise, and that to think otherwise is mere weakness and superstition. Another party, among whom we may reckon [[27]]some of the ancient fathers of the church, as well as some very eminent modern casuists, have been of another opinion, and have judged all such promises obligatory.
[27]. St. Augustine, la Placette.
If we consider the matter according to the common sentiments of mankind, we shall find that some regard would be thought due even to a promise of this kind; but that it is impossible to determine how much, by any general rule that will apply to all cases without exception. The man who was quite frank and easy in making promises of this kind, and who violated them with as little ceremony, we should not choose for our friend and companion. A gentleman who should promise a highwayman five pounds and not perform, would incur some blame. If the sum promised, however, was very great, it might be more doubtful, what was proper to be done. If it was such, for example, that the payment of it would entirely ruin the family of the promiser, if it was so great as to be sufficient for promoting the most useful purposes, it would appear in some measure criminal, at least extremely improper, to throw it, for the sake of a punctilio, into such worthless hands. The man who should beggar himself, or who should throw away an hundred thousand pounds, though he could afford that vast sum, for the sake of observing such a parole with a thief, would appear to the common sense of mankind, absurd and extravagant in the highest degree. Such profusion would seem inconsistent with his duty, with what he owed both to himself and others, and what, therefore, regard, to a promise extorted in this manner, could by no means authorize. To fix, however, by any precise rule, what degree of regard ought to be paid to it, or what might be the greatest sum which could be due from it, is evidently impossible. This would vary according to the characters of the persons, according to their circumstances, according to the solemnity of the promise, and even according to the incidents of the rencounter: and if the promiser had been treated with a great deal of that sort of gallantry, which is sometimes to be met with in persons of the most abandoned characters, more would seem due than upon other occasions. It may be said in general, that exact propriety requires the observance of all such promises, whenever it is not inconsistent with some other duties that are more sacred; such as regard to the public interest, to those whom gratitude, whom natural affection, or whom the laws of proper beneficence should prompt us to provide for. But, as was formerly taken notice of, we have no precise rules to determine what external actions are due from a regard to such motives, nor, consequently, when it is that those virtues are inconsistent with the observance of such promises.
It is to be observed, however, that whenever such promises are violated, though for the most necessary reasons, it is always with some degree of dishonour to the person who made them. After they are made, we may be convinced of the impropriety of observing them. But still there is some fault in having made them. It is at least a departure from the highest and noblest maxims of magnanimity and honour. A brave man ought to die, rather than make a promise which he can neither keep without folly, nor violate without ignominy. For some degree of ignominy always attends a situation of this kind. Treachery and falsehood are vices so dangerous, so dreadful, and, at the same time, such as may so easily, and, upon many occasions, so safely be indulged, that we are more jealous of them than of almost any other. Our imagination therefore attaches the idea of shame to all violations of faith, in every circumstance and in every situation. They resemble, in this respect, the violations of chastity in the fair sex, a virtue of which, for the like reasons, we are excessively jealous; and our sentiments are not more delicate with regard to the one, than with regard to the other. Breach of chastity dishonours irretrievably. No circumstances, no solicitation can excuse it; no sorrow, no repentance atone for it. We are so nice in this respect that even a rape dishonours, and the innocence of the mind cannot, in our imagination, wash out the pollution of the body. It is the same case with the violation of faith, when it has been solemnly pledged, even to the most worthless of mankind. Fidelity is so necessary a virtue, that we apprehend it in general to be due even to those to whom nothing else is due, and whom we think it lawful to kill and destroy. It is to no purpose that the person who has been guilty of the breach of it, urges that he promised in order to save his life, and that he broke his promise because it was inconsistent with some other respectable duty to keep it. These circumstances may alleviate, but cannot entirely wipe out his dishonour. He appears to have been guilty of an action with which, in the imaginations of men, some degree of shame is inseparably connected. He has broke a promise which he had solemnly averred he would maintain; and his character, if not irretrievably stained and polluted, has at least a ridicule affixed to it, which it will be very difficult entirely to efface; and no man, I imagine, who had gone through an adventure of this kind, would be fond of telling the story.