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,7 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 parole8 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:9 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, wherever 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