In Christopher’s home, there hangs a framed letter on official White House stationery. It is a letter dated December 21, 1963 from Vice President Herbert Humphrey, expressing his gratitude to Christopher for his dedication and service under the Kennedy Administration. Today, it serves as a reminder to Christopher of his professional achievements throughout his decorated career in international relations and foreign affairs. 

Christopher is a man of the world. He surrounds himself with mementos of his travels and, together with his wife, has charted their globetrotting adventures on the world map that now adorns their living room. The map, Christopher says, is a way for him and his wife to remember “something that is a major part of both of us." 

Christopher continues to engage with the world by staying informed on current events through newspapers and TV news broadcasts. Reading, in particular, has become an important way for Christopher to cope with his MCI. "I would say over the last couple of years my memory has slowly been fading,” he says, "So I read a lot. I read the New York Times every day, in depth, I don’t just thumb through it." 

His exploration of the world also extends to his own neighborhood, Rittenhouse Square. An avid walker, Christopher firmly believes that physical and mental activity are deeply entwined. “I'm interested in the world, so I’m interested in memory, and the Penn Memory Center."