Babe Paley? Wallis Simpson? Suzy Knickerbocker? Mrs. J. Gordon Douglas Sr.? Gregg Moran? Truman Capote? Dorothy Parker? Joan Rivers? Zenith Carburetor? Anonymous? Dear Quote Investigator: Achieving wealth and a svelte body have become idealized goals in some cultural milieus. Here are three versions of a pertinent maxim: You can never be too rich or too …