Walter Breuning, the world's oldest man, died Thursday at the age of 114. Breuning lived in Minnesota at the beginning of the century, in a house with no electricity or running water. At 16, after his parents split, he went to work for the Great Northern Railway in Melrose as a clerk. He moved to Great Falls, Montana, when his boss received a promotion, and stayed there for the rest of the century. Breuning retired from his job as a railroad clerk after 50 years, in 1963, and went on to work at a local chapter of the Shriners until he was 99. At the Rainbow Senior Living retirement home in Great Falls, where he lived since 1980, he visited the doctor just twice a year and the only medication he took was aspirin. He attributed his good health to eating only two meals a day. "Everybody says your mind is the most important thing about your body,” Breuning told the Associated Press in October. “Your mind and your body. You keep both busy, and by God you'll be here a long time," he said.