William Robert Miller, Nonviolence: A Christian Interpretation, Association Press, New York, 1964. The Mahatma’s conception of nonviolence or Ahimsa was never passive. He certainly never compromised with evil, for he insisted that a wrong should not merely; provoke protest but that it should be actively resisted. The practical expression of Ahimsa was Satyagraha, which literally means the power of truth but is generally described as soul force.
Ibid, P.24