Difficult To Measure

"Peace is a difficult thing to measure. 

It’s a bit like counting the people who didn’t die in wars that never happened. 

We give such importance to the word peace, but we don’t tend to notice it when it occurs — or report on it. 

Sometimes it takes reminding ourselves of how terrible war once was to see the peace that has been growing around us." 

Neil Halloran

See also: Pinker, S. (2011). The better angels of our nature: Why violence has declined. New York: Viking. (author, library, related TED Talk)