Routledge's Manual of Etiquette

Compliance with, and deference to, the wishes of others is the finest breeding. When you cannot agree with the propositions advanced in general conversation, be silent. If pressed for your opinion, give it with modesty. Never defend your own views too warmly. When you find others remain unconvinced, drop the subject, or lead to some other topic. Look at those who address you. Never boast of your birth, your money, your grand friends, or anything that is yours. If you have travelled, do not intro