Christopher Hitchens' regret - Not writing more to people

Christopher Hitchens by Martin Rowson

The combative and confrontational Christopher Hitchens died of cancer in 2011. In 2010 he spoke with Jeremy Paxman, reflecting on his past and politics. At the end he shared a regret: 

"In case you are watching this anybody, and you ever wonder whether to write to any one, always do, because you’d be surprised by much of difference it can make. Here’s a regret: I regret not doing it more often myself."