Mahatma Gandhi enlightened his world like few others in the modern age. Philosopher, sage, nonviolent activist, lawyer, revolutionary, and a guiding spiritual light - Gandhi was all of these things. Near the end of his life he spoke of Seven Social Sins that, if left unchallenged, would lead the world into ever-increasing cycles of violence. Gandhi made clear where he worried the future was headed. Knowledge would be sought exclusively in its own...