Themes & patterns

Smith argues that the division of labor is the primary driver of increased productivity and economic growth, arising from the human propensity to truck, barter, and exchange, and limited by the extent of the market.

Individuals pursuing their own gain unintentionally promote the public good, as if led by an 'invisible hand,' making self-interest a more effective engine for societal wealth than deliberate attempts to serve the public.

Smith posits that labor is the real measure of the exchangeable value of all commodities, with the 'toil and trouble' of acquiring goods determining their true price, while money is merely nominal.

The book identifies three great orders of society—those living by rent, wages, and profit—and explores how property, birth, and fortune create authority, subordination, and inequality, especially in commercial versus pastoral societies.

Smith defines the sovereign's duties as defense, justice, and public works (like roads and education), while warning against government interference in markets, which he sees as harmful and driven by special interests.

Smith criticizes mercantilist policies like monopolies and trade restrictions, advocating for free trade and competition as the best means to lower prices, widen markets, and benefit the public over narrow dealer interests.

Smith traces the progression of society through stages—hunters, shepherds, agriculture, and commerce—showing how economic structures (like property and exchange) shape political authority, justice, and individual liberty.

Smith distinguishes between true wealth (the annual produce of land and labor) and money (a mere instrument of exchange), critiquing the popular confusion that equates riches with gold and silver.