We must learn which ceremonies may be breached occasionally at our convenience and which ones may never be if we are to live pleasantly with our fellow man.
Amy Vanderbilt (July 22, 1908 - December 27, 1974) was a U.S. authority on etiquette. In 1952 she published the best selling book Amy Vanderbilt's Complete Book of Etiquette. The book, later retitled Amy Vanderbilt's Etiquette, has been updated and is still in circulation today. The most recent edition (ISBN 0385413424) was edited by Nancy Tuckerman and Nancy Dunnan. Its longtime popularity has lead to it being considered a standard of etiquette writing.