She couldn't have been more than seven or eight years old. ';Go ahead, ask your question,' her father urged, nudging her forward. She smiled shyly and said, ';You're my hero. Who's yours?' Many peopleespecially girlshave asked us that same question over the years. It's one of our favorite topics. HILLARY: Growing up, I knew hardly any women who worked outside the home. So I looked to my mother, my...