It is common knowledge, I think, that King had an unusually deep grasp of nonviolence. What this means may not be so commonly acknowledged, namely that it lead him into a profound understanding of and optimism about the nature of reality itself. When he says that “darkness cannot drive out darkness; only light can do that. Hatred cannot drive out hatred; only love can do that,” he is pointing out a simple, polar difference between the two forces that determine the quality and direction of our life.

In the penetrating light of Gandhi’s vision, passivity and violence are really two sides of the same coin. On the spiritual plane, they emerge respectively from fear and anger—both drives of the private, separate self. The only really different coin is that of nonviolence, or selfless love in action (to paraphrase Martin Luther King). The only meaningful choice, then, is not between intervening (with blind force) or not intervening, but between violence and nonviolence as a guiding principle.