Hope is necessary. It's a necessary concept. And Barack Obama didn't just talk about hope because he thought it was just a nice slogan to get votes.

My role models were the people in my life. My mom, for sure. My dad. The teachers. For me, role-modeling was immediate, it was touchable. It was rare for me to idolize a movie star or a singer...because, truly, children connect with who is in their lives, present and accounted for.

My husband and I make physical activity a priority in our lives, and our daughters love being active as well. And while we each have sports and activities we enjoy, we try to go for hikes or bike rides together whenever we get the chance. We've found that the best way to help our girls be active is to find activities they truly enjoy.

You look at all the sporting companies out there. I won't name names, but we know who they are. Good brands and logos and things like that, and they have to start catering to real women. Even in how their sports apparel is designed, and the commercials - you want to look at a commercial and see yourself.

When I was little, I wanted to be a mother, because that's who I saw. I saw my mom caring for me. I didn't play doctor. I didn't play lawyer. I didn't have those visions until I was in college, meeting people who were doing those things. That's why we're trying to encourage moms, teachers, fathers, to be that presence in their children's lives, in their communities, because it really makes a difference.

I never thought I'd be on Sesame Street with Elmo and Big Bird. I'm still thrilled. I'm on a high.

I talk about the food issue, I'm really coming at it from pre-White House times, when I was a working mother with a busy husband, a very demanding job and two little kids to feed.... I had to learn what it means to feed and care for your kids in a country where fast food is abundant, where time is a rarity, where eating out is a trend, because families are so busy.... Yes, I'm First Lady, but I know the struggles.