Harvard Professor Doug Melton developed an interest in biology as a child, watching tadpoles develop into frogs in his native Illinois, and he began focusing on the prospects for using stem cells to cure diabetes after both of his children were diagnosed with the disease. When Melton spoke at Lippmann House in March, he acknowledged that the pace of scientific advances doesn’t match the pace of news reporting. His research team spent nearly 12 years creating insulin-producing cells, and they are still working on ways to protect those cells from the immune system attack that causes diabetes. "If I have one good idea a year, that's a very good year," Melton said. "Think about these life changes in decades, not in years, not in months, and certainly not in the daily news cycle."