Today in particular we have drifted dangerously far indeed, and because we have for the first time the raw power to destroy life on Planet Earth the return to perennial truth could not possibly be more urgent. King, like Gandhi, was fully aware that ultimately he was engaged in this very struggle.

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.