… is from Matt Ridley’s May 22, 2010, Wall Street Journal article entitled “Humans: Why They Triumphed.” (HT Jim Dorn, editor of the Cato Journal):
The story of the human race has been a gradual spread of specialization and exchange…. Prosperity consists of getting more and more narrow in what you make and more and more diverse in what you buy. Self-sufficiency – subsistence – is poverty.
