The first specifics of Nelson Mandela's condition are trickling out following the former president's weekend hospitalization, and they're both encouraging and heart-tugging. The New York Times reports that his condition has been revealed as a recurring lung infection, and he is reportedly "responding to the treatment." But wife Graca Machel spoke yesterday of the difficulty of seeing him age, reports the AFP, telling a news station, "It's something also which pains you. ... I mean, this spirit and this sparkle, you see that somehow it's fading." The 94-year-old was also hospitalized for a respiratory infection in January 2011; he was hospitalized earlier this year with stomach pains.