2-37 Conversation Rules for Gentlemen from 1875

Retain, if you will, a fixed political opinion, yet do not parade it upon all occasions, and, above all, do not endeavor to force others to agree with you. Listen calmly to their ideas upon the same subjects, and if you cannot agree, differ politely, and while your opponent may set you down as a bad politician, let him be obliged to admit that you are a gentleman.

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