Erich S. Gruen is Gladys Rehard Wood Professor of History and Classics at the University of California, Berkeley. He is the author of "The Last Generation of the Roman Republic "(California, 1974), "The Hellenistic World and the Coming of Rome "(California, 1984), "Studies in Greek Culture and Roman Policy "(1990), "Culture and National Identity in Republican Rome "(1992), and "Diaspora: Jews amidst the Greeks and Romans "(forthcoming).