If my future were determined just by my performance on a standardized test, I wouldn't be here. I guarantee you that.

Always stay true to yourself and never let what somebody says distract you from your goals.

The idea that we are our brother's keeper and our sister's keeper. That we should treat others as we would want to be treated. And that we care for the sick... feed the hungry... and welcome the stranger... no matter where they come from, or how they practice their faith.

I want to feel like the things I did made a difference. That's one of the reasons I spend time greeting people on rope lines, because I'm always thinking, 'Maybe this interaction, particularly if I'm meeting kids, will change someone's life.' That's how I think about the work I do as First Lady. It's a rare spotlight. I want to make sure I don't waste it.

You see, at the end of the day, my most important title is still 'mom-in-chief.' My daughters are still the heart of my heart and the center of my world.

When you're really trying to make serious change, you don't want people to get caught up in emotion because change isn't emotion. Because change isn't emotion. Its real work and organization and strategy - that's just the truth of it. I mean, you pull people in with inspiration, but then you have to roll up your sleeves and you've got to make sacrifices and you have got to have structure.

I have never felt more confident in myself, more clear on who I am as a woman. But I am constantly thinking about my own health and making sure that I'm eating right and getting exercise and watching the aches and pains. I want to be this really fly 80-90-year old.