Don't contradict people even if you are sure you are right. Don't be inquisitive about the affairs of even your most intimate friend. Don't underrate anything because you don't possess it. Don't believe that everybody else in the world is happier than you. Don't conclude that you have never had any opportunities in life. Don't believe all the evil you hear. Don't repeat gossip, even if it does interest a crowd. Don't go untidy on the plea that everybody knows you. Don't be rude to your inferiors in social position. Don't over or under-dress. Don't express a positive opinion unless you perfectly understand what you are talking about. Don't get in the habit of vulgarizing life by making light of the sentiment of it. Don't jeer at anybody's religious belief. Don't try to be anything else but a gentlewoman—and that means a woman who has consideration for the whole world and whose life is governed by the Golden Rule, “Do unto others as you would be done by.”—Ladies' Home Journal.