The consciousness, or even the suspicion of having done wrong, is a load upon every mind, and is accompanied with anxiety and terror in all those who are not hardened by long habits of iniquity. Men, in this, as in all other distresses, are naturally eager to disburthen themselves of the oppression which they feel upon their thoughts, by unbosoming the agony of their mind to some person whose secrecy and discretion they can confide in. The shame, which they suffer from this acknowledgment, is fully compensated by that alleviation of their uneasiness which the sympathy of their confident seldom fails to occasion. It relieves them to find that they are not altogether unworthy of regard, and that however their past conduct may be censured, their present disposition is at least approved of, and is perhaps sufficient to compensate the other, at least to maintain them in some degree of esteem with their friend. A numerous and artful clergy had, in those times of superstition, insinuated themselves into the confidence of almost every private family. They possessed all the little learning which the times could afford, and their manners, though in many respects rude and disorderly, were polished and regular compared with those of the age they lived in. They were regarded, therefore, not only as the great directors of all religious, but of all moral duties. Their familiarity gave reputation to whoever was so happy as to possess it, and every mark of their disapprobation stamped the deepest ignominy upon all who had the misfortune to fall under it. Being considered as the great judges of right and wrong, they were naturally consulted about all scruples that occurred, and it was reputable for any person to have it known that he made those holy men the confidents of all such secrets, and took no important or delicate step in his conduct without their advice and approbation. It was not difficult for the clergy, therefore, to get it established as a general rule, that they should be entrusted with what it had already become fashionable to entrust them, and with what they generally would have been entrusted though no such rule had been established. To qualify themselves for confessors became thus a necessary part of the study of churchmen and divines, and they were thence led to collect what are called cases of conscience, nice and delicate situations, in which it is hard to determine whereabouts the propriety of conduct may lie. Such works, they imagined, might be of use both to the directors of consciences and to those who were to be directed; and hence the origin of books of casuistry.