I suppose I may assume that seven out of ten of those who read these lines are in some kind of difficulty about some other human being. Either at work or at home, either the people who employ you or those whom you employ, either those who share your house or those whose house you share, either your in-laws or parents or children, your wife or your husband, are making life harder for you than it need be even in these days. It is to be hoped that we do not often mention these difficulties (especially the domestic ones) to outsiders. But sometimes we do. An outside friend asks us why we are looking so glum; and the truth comes out.

C. S. Lewis says the secret may be facing the fatal flaw in your own character.