By:
Fredda Sacharow
Ernest M. Kahn After nearly two decades of trying, Ernest Kahn still hasn’t mastered this retirement thing. “When it comes to retirement, you are the biggest incompetent I know,” his friend Rabbi David Teutsch tells him, only half-joking. It’s not for lack of trying, Kahn, 86, says in his office at the Jewish Federation of Greater Philadelphia, where every Tuesday...