Manners must adorn knowledge and smooth its way in the world, without them it is like a great rough diamond, very well in a closet by way of curiosity, and also for its intrinsic value; but most prized when polished.
Lord ChesterfieldI am very sure that any man of common understanding may, by culture, care, attention, and labor, make himself what- ever he pleases, except a great poet.
Lord ChesterfieldTake rather than give the tone to the company you are in. If you have parts you will show them more or less upon every subject; and if you have not, you had better talk sillily upon a subject of other people's than of your own choosing.
Lord ChesterfieldA man's fortune is frequently decided by his first address. If pleasing, others at once conclude he has merit; but if ungraceful, they decide against him.
Lord Chesterfield