It has become a cliche to say that one person can make a difference, but the life of Mahatma Gandhi confronts us with the enduring truth of that statement. It is impossible to say exactly what moved people to revere and follow him and be imprisoned and beaten on his behalf in the thousands. No doubt, his ever gentle demeanor had a hand in that. His perpetual grace and joy, even in the face of terrible hardship, surely won some hearts and minds. His...