Back in 1997, Christin Gilmer was a 12-year-old sixth grader in Yuma, Arizona. Her teacher, Judith Toensing, always encouraged her, because she knew how smart she was. On her last report card to Christin, her teacher predicted Christin would someday graduate from Harvard, and asked to be invited to the ceremony. Christin kept that report card for 20 years. It was the first time anyone (other than her parents) believed in her so much.

Now, 21 years later, Christin has earned her Ph.D. in public health -- at Harvard, and her sixth-grade teacher was there to see it. University administrators found out about her note to Christin and paid for the whole trip. The Dean gave a speech and told her story, asking her to, "keep sending students our way."