Undertake not to teach your equal in the art he himself professes; it savors arrogancy.
When a man does all he can though it succeeds not well, blame not him that did it.
Being to advise or reprehend anyone, consider whether it ought to be in public or in private, presently or at some other time, also in what terms to do it; and in reproving show no signs of choler, but do it with sweetness and mildness.
Mock not nor jest at anything of importance; break no jests that are sharp or biting, and if you deliver anything witty or pleasant, abstain from laughing thereat yourself.
Wherein you reprove another be unblamable yourself, for example is more prevalent than precept.
Use no reproachful language against any one, neither curses or revilings.
Be not hasty to believe flying reports to the disparagement of anyone.
In your apparel be modest, and endeavor to accommodate nature rather than procure admiration. Keep to the fashion of your equals, such as are civil and orderly with respect to time and place.
Play not the peacock, looking everywhere about you to see if you be well decked, if your shoes fit well, if your stockings set neatly and clothes handsomely.
Associate yourself with men of good quality if you esteem your reputation, for it is better to be alone than in bad company.