Pocket all your knowledge with your watch, and never pull it out in company unless desired.
Lord ChesterfieldNot to perceive the little weaknesses and the idle but innocent affectations of the company may be allowable as a sort of polite duty. The company will be pleased with you if you do, and most probably will not be reformed by you if you do not.
Lord ChesterfieldMen are apt to mistake, or at least to seem to mistake, their own talents, in hopes, perhaps, of misleading others to allow them that which they are conscious they do not possess. Thus lord Hardwicke valued himself more upon being a great minister of state, which he certainly was not, than upon being a great magistrate, which he certainly was.
Lord ChesterfieldEverything is worth seeing once, and the more one sees the less one either wonders or admires.
Lord ChesterfieldCultivate the habit of thinking ahead, and of anticipating the necessary and immediate consequences of all your actions.... Likewise in your pleasures, ask yourself what such and such an amusement leads to, as it is essential to have an objective in everything you do. Any pastime that contributes nothing to bodily strength or to mental alertness is a totally ridiculous, not to say, idiotic, pleasure.
Lord Chesterfield