With the rise of chiefdoms around 7,500 years ago, people had to learn, for the first time in history, how to encounter strangers regularly without attempting to kill them.
Jared DiamondWhy is it that you white people developed so much cargo and brought it to New Guinea, but we black people had little cargo of our own?
Jared DiamondThe past was still a Golden Age, of ignorance, while the present is an Iron Age of willful bliss.
Jared DiamondTo science we owe dramatic changes in our smug self-image. Astronomy taught us that our Earth is not the center of the universe, but merely one of nine planets circling one of billions of stars. From biology we learned that humans were not specially created by God but evolved along with tens of millions of other species.
Jared DiamondAhead of me lies the familiar litany: weakening of the heart, hardening of the arteries, increasing brittleness of bones, decreases in kidney filtration rates, lower resistance of the immune system, and loss of memory. The list could be extended almost indefinitely. Evolution seems indeed to have arranged things so that all our systems deteriorate, and that we invest in repair only as much as we are worth.
Jared Diamond