The Jews of The Magic Barrel and the Jews of The Assistant are not the Jews of New York City or Chicago. They are Malamud’s inventions, a metaphor of sorts to stand for certain possibilities and promises, and I am further inclined to believe that when I read the statement attributed to Malamud which goes, “All men are Jews.” In fact, we know this is not so; even the men who are Jews aren’t sure they’re Jews.
–Philip Roth, “Writing American Fiction,” in Reading Myself and Others