Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It is possible to change the world

I read this incredible book, "Mountains Beyond Mountains" several years ago. Extremely well written, the author Tracy Kidder, mesmerizes the reader with the true story of Dr. Paul Farmer. Through his strength of character, brillant medical mind and deep love and admiration for the Haitian people, he builds a medical community which to this day is operating in Haiti. Run primarily by Haitian doctors, Partners in Health has become a model for indigenous medical care throughout the world. This is a fascinating book, highlighting what people can do when they are determined and respectful of those they desire to serve. Partners in Health is located outside of Port-au-Prince, Haiti and is currently treating patients injured in the devastating earthquake. www.pih.org