Thus are the fondest and firmest friendships dissolved, by such openness and sincerity as interrupt our enjoyment of our own approbation, or recal us to the remembrance of those failings which we are more willing to indulge than to correct. It is by no means necessary to imagine, that he who is offended at advice, was ignorant of the fault, and resents the admonition as a false charge; for perhaps it is most natural to be enraged, when there is the strongest conviction of our own guilt. While we can easily defend our character, we are no more disturbed at an accusation, than we are alarmed by an enemy whom we are sure to conquer; and whose attack, therefore, will bring us honour without danger. But when a man feels the reprehension of a friend seconded by his own heart, he is easily heated into resentment and revenge, either because he hoped that the fault of which he was conscious had escaped the notice of others; or that his friend had looked upon it with tenderness and extenuation, and excused it for the sake of his other virtues; or had considered him as too wise to need advice, or too delicate to be shocked with reproach: or, because we cannot feel without pain those reflections roused which we have been endeavouring to lay asleep; and when pain has produced anger, who would not willingly believe, that it ought to be discharged on others, rather than on himself? The resentment produced by sincerity, whatever be its immediate cause, is so certain, and generally so keen, that very few have magnanimity sufficient for the practice of a duty, which, above most others, exposes its votaries to hardships and persecutions; yet friendship without it is of very little value since the great use of so close an intimacy is, that our virtues may be guarded and encouraged, and our vices repressed in their first appearance by timely detection and salutary remonstrances.