Inspired by Adam Smith's Wealth of Nations, he argued that manufacturing would increase economic productivity through the division of labour into small, specialised tasks.
According to the opening sentence of The Wealth of Nations, all commodities originate from labor, and labor is therefore the real measure of the exchangeable value of all commodities.
And this is from his The Wealth of Nations, published in 1776, coincidentally, the same year as the American Declaration of Independence, and it's one of his most-famous excerpts.
这是他 1776 年版的《国富论》(The Wealth of Nations),巧合的是,美国独立宣言在同一年版,这是他最著名的摘录之一。