"In the book of Genesis, when God calls out, "Abraham!" to order him to sacrifice his son Isaac, Abraham responds, "Here I am." Later, when Isaac calls out, "My father!" to ask him why there is no animal to slaughter, Abraham responds, "Here I am." How do we fulfill our conflicting duties as father, husband, and son; wife and mother; child and adult? Jew and American? How can we claim our own identities when our lives are linked so closely to others'?...