In 1962, when I was 19, I visited India. With introductions from people involved in the U.S. civil rights movement, I was able to visit with several of the leading Gandhians there. The hundred-to-one difference in average per capita income between America and India at the time was a stark reality for the people who became my friends there.

Public service and respect for ideas is a recurrent theme in both the American and Australian sides of my family.

It's the combination: big idea with a good entrepreneur: there's nothing more powerful.

The life purpose of the true social entrepreneur is to change the world.

My family always makes a huge deal out of Christmas.

Parenting is the most important thing to many of us, and so it's also the place we're most vulnerable. We're all a little afraid we're doing it wrong.

I love my son, but my daughter has calmed me down.

I try to stay centered in my faith and my family and the close people around me.