Children teach us to be courageous and to stand up against injustice.

Don't assume a door is closed; push on it. Don't assume if it was closed yesterday that it is closed today. Don't ever stop learning and improving your mind. If you do, you're going to be left behind.

You just need to be a flea against injustice. Enough committed fleas biting strategically can make even the biggest dog uncomfortable and transform even the biggest nation.

Service is what life is all about.

Dr. King used to say, 'I was sitting in the back of the bus, but my mind was always up front.' Don't let anybody tell you that you can't do it. You aim high and you work very hard and now I think it's clear that you can be anything you want to.

A lot of people are waiting for Martin Luther King or Mahatma Gandhi to come back - but they are gone. We are it. It is up to us. It is up to you.

Homeless shelters, child hunger, and child suffering have become normalized in the richest nation on earth. It's time to reset our moral compass and redefine how we measure success.