Never say "Au revoir" unless you have been talking French, or are speaking to a French person.

Never so long as you live, write a letter to a man - no matter who he is - that you would be ashamed to see in a newspaper above your signature.

Nothing is less important than which fork you use. Etiquette is the science of living. It embraces everything. It is ethics. It is honor.

Alas! it is true: "Be polite to bores and so shall you have bores always round about you."

Excepting a religious ceremonial, there is no occasion where greater dignity of manner is required of ladies and gentlemen both, than in occupying a box at the opera. For a gentleman especially no other etiquette is so exacting.

Manner is personality—the outward manifestation of one’s innate character and attitude toward life.

There 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.