Common courtesy: in which Miss Manners...
A source page for quotes linked to Judith Martin.
“Nowadays people consider it a disgrace to admit that they are not stressed.”
“Sometimes we do things a certain way just because that is the way we do things.”
“The most conventional statements are both true and welcome.”
“The stress of making small talk with in-laws is called being part of a family.”
“The underlying principles of manners- respect, fairness, and congeniality.”
“The way one was brought up isn't an excuse for rude behavior.”
“There are always proper responses, even to rude questions.”
“There is no etiquette rule that decrees one must give out personal information to anyone who asks.”
“When you're in love, you put up with things that, when you're out of love you cite.”
“It is said that dispensing advice is easy. What is difficult is getting anyone to listen to it.”
“People will say, 'Seventy isn't old, it's middle-aged,' and I think, middle of what - 140?”
“Nowadays, you form your beliefs to fit your behavior, not the other way around.”
“The one prediction that never comes true is, 'You'll thank me for telling you this.”
“You think death is any better an excuse for desertion than any other?”
“Protocol is etiquette with a government expense account.”