Nothing sharpens the arrow of sarcasm so keenly as the courtesy that polishes it; no reproach is like that we clothe with a smile and present with a bow.
Lord ChesterfieldIf ever a man and his wife, or a man and his mistress, who pass nights as well as days together, absolutely lay aside all good breeding, their intimacy will soon degenerate into a coarse familiarity, infallibly productive of contempt or disgust.
Lord ChesterfieldA seeming ignorance is very often a most necessary part of worldly knowledge. It is, for instance, commonly advisable to seem ignorant of what people offer to tell you; and when they say, Have not you heard of such a thing? to answer No, and to let them go on, though you know it already.
Lord Chesterfield