Here are the next ten maxims of George Washington's "Rules of Civility and Decent Behaviour in Company and Conversation". Enjoy!
(Ferry Farm, c. 1744)
61st Utter not base and frivilous things amongst grave and Learn'd Men nor very Difficult Questians or Subjects, among the Ignorant or things hard to be believed, Stuff not your Discourse with Sentences amongst your Betters nor Equals.
62nd Speak not of doleful Things in a Time of Mirth or at the Table; Speak not of Melancholy Things as Death and Wounds, and if others Mention them Change if you can the Discourse tell not your Dreams, but to your intimate Friend.
63rd A Man ought not to value himself of his Atchievements, or rare Qualities of wit; much less of his riches Virtue or Kindred.
64th Break not a Jest where none take pleasure in mirth Laugh not aloud, nor at all without Occasion, deride no mans Misfortune, tho' there Seem to be Some cause.
65th Speak not injurious Words neither in Jest nor Earnest Scoff at none although they give Occasion.
66th Be not froward but friendly and Courteous; the first to Salute hear and answer & be not Pensive when it's a time to Converse.
67th Detract not from others neither be excessive in Commanding.
68th Go not thither, where you know not, whether you Shall be Welcome or not. Give not Advice without being Ask'd and when desired do it briefly.
69th If two contend together take not the part of either unconstrained; and be not obstinate in your own Opinion, in Things indiferent be of the Major Side.
70th Reprehend not the imperfections of others for that belongs to Parents Masters and Superiours.
I hope you are studying these as much as I am. I'm quite sure that Orrin Woodward has these noted in a book in his library and I'll bet he can put his hands on it in less than 30 seconds.