Cautiously avoid speaking of the domestic affairs either of yourself, or of other people. Yours are nothing to them but tedious gossip; and theirs are nothing to you.

A certain degree of ceremony is a necessary outwork of manners, as well as of religion; it keeps the forward and petulant at a proper distance, and is a very small restraint to the sensible and to the well-bred part of the world.

The world can doubtless never be well known by theory: practice is absolutely necessary; but surely it is of great use to a young man, before he sets out for that country, full of mazes, windings, and turnings, to have at least a general map of it, made by some experienced traveler.

Without any extraordinary effort of genius, I have discovered that nature was the same three thousand years ago as at present; that men were but men then as well as now; that modes and customs vary often, but that human nature is always the same. And I can no more suppose, that men were better, braver, or wiser, fifteen hundred or three thousand years ago, than I can suppose that the animals or vegetables were better than they are now.

Observe it, the vulgar often laugh, but never smile, whereas well-bred people often smile, and seldom or never laugh. A witty thing never excited laughter, it pleases only the mind and never distorts the countenance.

Take the tone of the company you are in...

A man who cannot command his temper, his attention, and his countenance should not think of being a man of business.