Voltaire? Cardinal Richelieu? Étienne François de Choiseul? Catharine Sedgwick? Marie-Henri Beyle? Lionel de Rothschild? Anonymous? Question for Quote Investigator: Bankers in Switzerland are world-renowned for their financial acuity. Here are three remarks which illustrate this perception: (1) If you ever see a Swiss banker jump out of a window, jump after him; there is a …