Do not bring people in your life who weigh you down. And trust your instincts ... good relationships feel good. They feel right. They don't hurt. They're not painful. That's not just with somebody you want to marry, but it's with the friends that you choose. It's with the people you surround yourselves with.

I think the most moving part of my trip [to Africa] so far was seeing 92-year-old Nelson Mandela, and just thinking about his life. This man has lived through a struggle that few nations have known.

When I get up and work out, I'm working out just as much for my girls as I am for me, because I want them to see a mother who loves them dearly, who invests in them, but who also invests in herself. It's just as much about letting them know as young women that it is okay to put yourself a little higher on your priority list.

Success is only meaningful - and enjoyable - if it feels like your own.

Since we started the Let's Move! initiative, I've been looking for as many ways as possible to help families and kids lead healthier lives. And I've come to realize that if we were going to take just one step to make ourselves and our families healthier, probably the single best thing we could do is to simply drink more water. It's as simple as that. Drink more water.

I felt, as a lawyer, when I was mentoring and working with kids, that I gained a level of groundedness that I just couldn't get sitting on the forty-seventh floor of a fancy firm. Selfishly, it gives me joy - it makes me feel like my life has a purpose.

If we truly believe that every girl in every corner of the globe is worthy of an education as our own daughters and granddaughters are, then we need to deepen our commitment to these efforts.