Ideological differences are no excuse for rudeness.

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.

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

Only a person who considers himself too good for you is good enough.

Knowing that others have gone through similar tragedies may be a help, but it should be remembered that every tragedy is not only commonplace but also unique.

Parents should conduct their arguments in quiet, respectful tones, but in a foreign language. You'd be surprised what an inducement that is to the education of children.

The etiquette business has its emergencies, heaven knows, but it is in the nature of etiquette emergencies that once one realizes what one has done, it is too late. One might as well get a good night's sleep and send flowers with an apology in the morning.