His legacy is how he led his life. I read the following on Alan's FB page and the sentiment is so beautiful I would like to share the words of Alan's friend.
He was one of my favorite people on the planet. I remember a very distinct conversation about the Vietnam war and Apollo 11. He was in Vietnam when we landed on the moon. He told me he remembered staring up at the moon when he heard the news. He was, at the time, knee deep in the muck walking through the jungle and he thought to himself, "How far we've come and how far we have to go." Alan had the soul of a lion and the heart of a poet.