The Theory of Moral Sentiments - Adam Smith [228]
But the man who had the most frequent occasion to consult them, was the man of equivocation and mental reservation, the man who seriously and deliberately meant to deceive, but who, at the same time, wished to flatter himself that he had really told the truth. With him they have dealt variously. When they approved very much of the motives of his deceit, they have sometimes acquitted him, though, to do them justice, they have in general and much more frequently condemned him.
The chief subjects of the works of the casuists, therefore, were the conscientious regard that is due to the rules of justice; how far we ought to respect the life and property of our neighbour; the duty of restitution; the laws of chastity and modesty, and wherein consisted what, in their language, are called the sins of concupiscence; the rules of veracity, and the obligation of oaths, promises, and contracts of all kinds.
It may be said in general of the works of the casuists that they attempted, to no purpose, to direct by precise rules what it belongs to feeling and sentiment only to judge of. How is it possible to ascertain by rules the exact point at which, in every case, a delicate sense of justice begins to run into a frivolous and weak scrupulosity of conscience? When it is that secrecy and reserve begin to grow into dissimulation? How far an agreeable irony may be carried, and at what precise point it begins to degenerate into a detestable lie? What is the highest pitch of freedom and ease of behaviour which can be regarded as graceful and becoming, and when it is that it first begins to run into a negligent and thoughtless licentiousness? With regard to all such matters, what would hold good in any one case would scarce do so exactly in any other, and what constitutes the propriety and happiness of behaviour varies in every case with the smallest variety of situation. Books of casuistry, therefore, are generally as useless as they are commonly tiresome. They could be of little use to one who should consult them upon occasion, even supposing their decisions to be just; because, notwithstanding the multitude of cases collected in them, yet upon account of the still greater variety of possible circumstances, it is a chance, if among all those cases there be found one exactly parallel to that under consideration. One, who is really anxious to do his duty, must be very weak, if he can imagine that he has much occasion for them; and with regard to one who is negligent of it, the style of those writings is not such as is likely to awaken him to more attention. None of them tend to animate us to what is generous and noble. None of them tend to soften us to what is gentle and humane. Many of them, on the contrary, tend rather to teach us to chicane with our own consciences, and by their vain subtilties serve to authorise innumerable evasive refinements with regard to the most essential articles of our duty. That frivolous accuracy which they attempted to introduce into subjects which do not admit of it, almost necessarily betrayed them into those dangerous errors, and at the same time rendered their works dry and disagreeable, abounding in abstruse and metaphysical distinctions, but incapable of exciting in the heart any of those emotions which it is the principal use of books of morality to excite.
The two useful parts