Speak the language of the company you are in; speak it purely, and unlarded with any other.
Lord ChesterfieldAssurance and intrepidity, under the white banner of seeming modesty, clear the way for merit, that would otherwise be discouraged by difficulties...
Lord ChesterfieldGood manners, to those one does not love, are no more a breach of truth, than "your humble servant," at the bottom of a challengeis; they are universally agreed upon, and understand to be things of course. They are necessary guards of the decency and peace of society.
Lord ChesterfieldKeep your hands clean and pure from the infamous vice of corruption, a vice so infamous that it degrades even the other vices thatmay accompany it. Accept no present whatever; let your character in that respect be transparent and without the least speck, for as avarice is the vilest and dirtiest vice in private, corruption is so in public life.
Lord Chesterfield