"The source of violence is in our heads. As it would not be appropriate to ignore "just a little" cancer in the body, so it is not appropriate for us to ignore "just a little" violent thinking. A little cancer, unchecked, turns into a monstrous killer. So do small, insidious, seemingly harmless judgmental thought forms become the pervasive cancers that threaten to destroy a society. As the body's defenses against cancer center around a healthy immune system, our chief defense against violence in America is our own individual efforts to cleanse our minds of violent thinking. Each and every one of us tends to be angrier and less tolerant of others than we know in our hearts that we should be."