translation.en: To mention just a few examples, our lives are longer, materially much richer, and less plagued by violence than are the lives of people in traditional societies.
translation.zh: 举几个例子， 比在传统社会中人的生活。 我们活得更久，物质更丰富， 也少受暴力迫害。 但传统社会中的人们