“Avoid thinking that you’re a journalist. Almost every vanity mogul makes this mistake. Things that important people tell you at cocktail parties are not news, so don’t bother your editor with these tidbits. The ideas you come up with while reading Paul Krugman columns are not news, so keep those to yourself, too. Your business colleagues at Harman International aren’t journalists, either, nor are your friends, so don’t let them write for the magazine.” — Jack Shafer in his (always excellent) unsolicited advice series. This installment: Sidney Harman.