III. _In such an office, the motive of benevolence and sympathy should be seen to have the predominance over the motive of self-interest._--The laborer in this department, as well as in all others, is worthy of his hire, but if those he would influence discover in the manner of doing his work, or in his general intercourse, that he acts the part of a mere functionary, having his beat like a police officer, and fulfilling an appointed task like a delver or ditcher, his usefulness will be greatly circumscribed. And this suggests IV. A fourth quality in a chaplain or moral instructor, viz.: _a warm, glowing, personal, enthusiastic sympathy with the population of the prison_.--He is a physician among a company of diseased and dying patients. They are bidden to look to him for direction and to confide in his prescriptions, (though not in his power or skill,) for a cure of their maladies. If he has felt in his own person the presence of the same disease, (though perhaps in a less offensive and aggravated form,) and has known the value of a remedy, he will not look with indifference on their symptoms, nor hear unmoved their sighs and groans. He will have a tear of sympathy for the suffering; a helping hand for the weak and trembling, and will deal honestly but gently with the impatient and froward. They are guilty, and is he without sin? They are suffering the penalty of a wholesome law, and what but an unseen hand has restrained him from violating it? While therefore, he sets before them, honestly and faithfully, the evil of their ways, he will give power and persuasiveness to his words by the tender and sympathizing tones in which they are uttered. While he points them to a merciful and faithful high priest that has past into the heavens, and ever lives to make intercession for guilty, penitent men, he shows that, like that same high priest, he is touched with the feeling of their infirmities and sympathizes in their bondage. V. A chaplain or moral instructor _should have good judgment in the selection of subjects of conversation and instruction, and in his methods of illustration_.--It is not unfrequently the case, that the most harsh and repulsive views of moral and religious truth are presented to those whose minds are already filled with prejudice and hostility, as if it were needful (as it is said to be in some bodily diseases) to make them worse before attempting to make them better. A man of ferocious temper is the last person to tame a wild beast; nor will a severe and offensive presentation of the most precious truth be likely to win an already alienated mind. To charge home their guilt on convicts, and make them feel that they have as good as they deserve, even if their situation were much worse than it is, will never pave the way for moral influences.