The very rich are different from you and me, F. Scott Fitzgerald noted. It is not merely, as Ernest Hemingway wisecracked in response, that they have more money; the possession of a fortune sets them apart in other ways too. They are free to indulge their dreams; free from anxiety about bills; free from the basic burdens of a struggle for subsistence. On the other hand, they must worry constantly about exploiters, extortionists, cranks, frauds, beggars, blackmailers, kidnappers, and every form of hostility that envy can generate. Small wonder that the conflicting pressures often squeeze them into eccentricity. They may not resemble the rest of us, but they tend to look a lot like each other.