Former President Jimmy Carter managed to keep the U.S. out of warfare during his presidency. Carter went on to defend his take on world peace after his time in the White House. Carter's casket has arrived in Washington,

Decades later, I don’t remember what prompted 10-year-old me to write to President Carter, writes. But I do remember how excited I was when I received a response and I still firmly believe writing letters — and responding to them — still matters.