Manners are like primary colors, there are certain rules and once you have these you merely mix, i.e., adapt, them to meet changing situations.
Emily PostThere is a big deposit of sympathy in the bank of love, but don't draw out little sums every hour or so - so that by and by, when perhaps you need it badly, it is all drawn out and you yourself don't know how or on what it was spent.
Emily PostCourtesy demands that you, when you are a guest, shall show neither annoyance nor disappointment--no matter what happens.
Emily PostPeople who picnic along the public highway leaving a clutter of greasy paper and swill (not a pretty name, but neither is it a pretty object!) for other people to walk or drive past, and to make a breeding place for flies, and furnish nourishment for rats, choose a disgusting way to repay the land-owner for the liberty they took in temporarily occupying his property.
Emily Post