"When I was a teenager, I got kicked out of ballet rehearsal for chewing gum. I was moping around the city, killing time until my friends got out, when I passed a homeless man. He reached out his hand, and I assumed he was asking for money—but instead he pointed at me and said, 'Don't worry, sweetie.' That memory always stuck with me, and now I carry loose change for every homeless person I see."
—Jessica Duncan, 25, New York City
"While driving in 2008, I suffered a cerebral stroke and my car crashed into a wall. A woman pulled over and called 911. She opened the door, took my hand, and asked if she could pray for me. An ambulance came shortly after, and I eventually recovered from paralysis. I call that woman my angel. Today I run a foundation that benefits the elderly and the handicapped, because I know how important it is to help those in need."
—Dick Warden, 70, San Diego
Next: Read Oprah's interview with Dr. Oz