I am reading the book Mountains Beyond Mountains, by Tracy Kidder, about Dr. Paul Farmer, who has created a hospital in the middle of Haiti, to serve the poorest and most ill people in our hemisphere.
Dr. Farmer is on a mission, and I have a deep respect for that sort of right action. For those who say, "I am only one person", this book speaks to us. One person can accomplish amazing feats, given vision, dedication, and continuing effort.
You can buy this book at half.com if you are interested. It is well-written, absorbing and inspiring.