Describe a man who has positively impacted your life.
Dr. Gerald Klatskin, professor of medicine at Yale in the 1970s is my obvious choice. For three years, I was a fellow in his Liver Study Unit. He was a patient teacher, researcher and friend. We fellows learned early on to never go to his office late in the day (his door was always open) to ask a question as we would be there for hours as he expounded on an answer, with both data and anecdotes.
The Passionate Reader 