Be prudently secret. But don't affect to make a secret of what all the world may know, nor give yourself airs of being as close as a conspirator. You will better disappoint idle curiosity by seeming to have nothing to conceal.
Never blame a friend without joining some commendation to make reproof go down.
It is by giving free rein to folly, in conversation and action, that people expose themselves to contempt and ridicule. The modest man may deprive himself of some part of the applause of some sort of people in conversation, by not shining altogether so much as he might have done. Or he may deprive himself of some lesser advantages in life by his reluctancy in putting himself forward. But it is only the rash and impetuous talker, or actor, that effectually exposes himself in company, or ruins himself in life. It is therefore easy to determine which is the safest side to err on.
It is a base temper in mankind, that they will not take the smallest slight at the hand of those who have done them the greatest kindness.
If you fall into the greatest company, in a natural and unforced way, look upon yourself as one of them; and do not sneak, nor suffer any one to treat you unworthily, without just showing that you know behavior. But if you see them disposed to be rude, overbearing, or purse-proud, it will be more decent and less troublesome to retire, than to wrangle with them.
There cannot be any practice more offensive than that of taking a person aside to whisper in a room with company; yet this rudeness is of frequent occurrence—and that with those who know it to be improper.
If at any time you chance, in conversation, to get on a side of an argument which you find not to be tenable, or any other way over-shoot yourself, turn off the subject in as easy and good humored a way as you can. If you proceed still, and endeavor, right or wrong, to make your first point good, you will only entangle yourself the more, and in the end expose yourself.
Never over-praise any absent person, especially ladies, in company of ladies. It is the way to bring envy and hatred upon those whom you wish well to.
To try whether your conversation is likely to be acceptable to people of sense, imagine what you say written down, or printed, and consider how it would read; whether it would appear natural, improving and entertaining; or affected, unmeaning, or mischievous.
It is better, in conversation with positive men, to turn off the subject in dispute with some merry conceit, than keep up the contention to the disturbance of the company.