Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Work, Marshall!

...I own a copy. A couple of days ago I was reading his words during lunch, and realized just how lucky I am to be able to drive alone, write alone and so forth. It would be so easy for Marshall to crawl deep inside himself, perhaps to swim in cynicism or despair, rather than to radiate such positive energy. It's true: The Brightest Lights Shine Only during the Darkest Nights... Five Stars to You Marshall! Keep up the good work! I see your shining light all the way over here in Florida! END