"Make the discussion of violence a public health priority. Ask health care workers to talk about the threat of violence in all its forms as a huge public health problem — from suicide to domestic abuse to mass murder."

"Violence, in many ways, has plunged over the course of history. Half a century without a great power war is unprecedented. It is a profound message that we have been doing something right. Unless you actually look at the numbers, over time, you don’t realize that even if things are bad—they used to be worse. What we can do does make a difference."

"How effective is violence? Political scientists have recently tried tallying the successes and failures of violent and nonviolent movements. The evidence is piling up that Gandhi was right—at least on average…Just think of the failed independence movements in Puerto Rico, Ulster, Quebec, Basque Country, Kurdistan, and Tamil Eelam. The success rate of terrorist movements is, at best, in the single digits."