It is wrong to wear diamonds before luncheon, except on one’s marriage rings. Before, after, and during breakfast, luncheon and dinner, it is vulgar to wear a mixture of colored precious stones. It is always a comfort to know that so many things one can’t afford to do anyway are vulgar.

Manners require showing consideration of all human beings, not just the ones to whom one is close.

it's no longer socially acceptable to make bigoted statements and racist remarks. Some people are having an awful time with that: 'I didn't know anybody would be offended!' Well, where have you been? I remember when people got away with it and they don't anymore. That's fabulous.

The challenge of manners is not so much to be nice to someone whose favor and/or person you covet (although more people need to be reminded of that necessity than one would suppose) as to be exposed to the bad manners of others without imitating them.

One of the big no-nos in cyberspace is that you do not go into a social activity, a chat group or something like that, and start advertising or selling things. This etiquette rule is an attempt to separate one's social life, which should be pure enjoyment and relaxation, from the pressures of work.

You think death is any better an excuse for desertion than any other?

There are three social classes in America: upper middle class, middle class, and lower middle class.