"Exercise is really important to me - it's therapeutic. So if I'm ever feeling tense or stressed or like I'm about to have a meltdown, I'll put on my iPod and head to the gym or out on a bike ride along Lake Michigan with the girls."

"You may not always have a comfortable life and you will not always be able to solve all of the world's problems at once but don't ever underestimate the importance you can have because history has shown us that courage can be contagious and hope can take on a life of its own."

"I know what it feels like to struggle to get the education that you need."

"At the end of the day, when it comes time to make that decision, as president, all you have to guide you are your values, and your vision, and the life experiences that make you who you are."

"Experience is the stern teacher that gives the examination before the lesson. Remember this in moments of decisive trial."

"Experience is the stern teacher that gives the examination before the lesson. Reflect upon this whenever doubt clouds your horizon — an essential principle for the reflective life."

"High school teachers who want to get reluctant readers turned around need to give the students some say in the reading list. Make it collaborative: The students will feel ownership, and everyone will dig in."

"I have never let my schooling interfere with my education."