On the whole I have had sense enough not to do things in public, except when it has been absolutely necessary, or would hurt people’s feelings badly if I didn’t. When you don’t do a thing well it is so much more sensible not to attempt it, and I don’t really see any reason why writers should–it’s not part of their stock-in-trade. There are many careers where personalities and public relations matter–for instance if you are an actor, or a public figure. An author’s business is simply to write. Writers are diffident creatures–they need encouragement.
