another person at hammering a head onto the wire,

一个擅长给金属丝锤一个头
another person at making the point sharp,

一个擅长磨针尖
another person at polishing the shaft.

一个擅长抛光针杆
And by division of labor and development of expertise,

通过劳动分工和专长发展
they can produce more pins of higher quality

他们所生产的扣针的质量和产量
than a single artisan doing each of those operations

比一个技工完成所有步骤的产出
by himself could possibly have done.

还要多质量也更好
It's a good illustration.

这是一个很好的例证
And if you think about

如果你想想
all the professions and occupations in an economy,

一个经济体里所有的行业和职业
that kind of profiting--that way of profiting from specialized expertise

凭借专业化分工获得的效益
is foundational to market societies, foundational to their wealth.

对市场及其财富来说都是基础