The fact that slang is apt and forceful makes its use irresistibly tempting. Coarse or profane slang is beside the mark, but "flivver," "taxi," the "movies," "deadly" (meaning dull), "feeling fit," "feeling blue," "grafter," a "fake," "grouch," "hunch" and "right o!" are typical of words that it would make our spoken language stilted to exclude.
Emily PostTo tell a lie in cowardice, to tell a lie for gain, or to avoid deserved punishment--are all the blackest of black lies.
Emily PostAlas! it is true: "Be polite to bores and so shall you have bores always round about you."
Emily PostTo be a good sportsman, one must be a stoic and never show rancor in defeat, or triumph in victory, or irritation, no matter what annoyance is encountered. One who can not help sulking, or explaining, or protesting when the loser, or exulting when the winner, has no right to take part in games or contests.
Emily PostManners are made up of trivialities of deportment which can be easily learned if one does not happen to know them; manner is personality - the outward manifestation of one's innate character and attitude toward life.... Etiquette must, if it is to be of more than trifling use, include ethics as well as manners. Certainly what one is, is of far greater importance than what one appears to be.
Emily Post