The Theory of Moral Sentiments
The Theory of Moral Sentiments (1759) is Smith's first book and, by his own assessment, his more important work. He revised it through six editions across his life, the last appearing in 1790 just months before his death — by which time The Wealth of Nations had been in print for fourteen years and had largely eclipsed its predecessor in public attention. The eclipse was a misfortune for the history of economics. Smith never separated moral psychology from political economy. The market that his later book describes operates within a moral culture whose architecture the earlier book explores.
In the AI Story
The book develops Smith's theory of sympathy, the impartial spectator, and the cultivation of moral judgment through social experience. It argues that moral life is grounded not in reason alone but in the human capacity to enter imaginatively into the situations of others — a capacity that is cultivated through experience and that can be weakened by circumstances that narrow the range of human engagement.
For understanding the AI moment, the Theory is indispensable in ways the Wealth alone is not. The Wealth gives us the mechanics of specialization and the invisible hand; the Theory gives us the moral culture within which these mechanics either serve human flourishing or degenerate into predation. The question raised by The Orange Pill — "Are you worth amplifying?" — is a Theory of Moral Sentiments question, not a Wealth of Nations question. It asks about the quality of the inner life that the market tools will amplify.
Smith's worry about the moral cost of extreme specialization appears in Book V of the Wealth but draws on moral psychology developed in the Theory. The workman narrowed by repetitive labor is not merely economically impoverished; he is morally diminished, because the impartial spectator atrophies without the breadth of experience that sustains it. The Theory is where Smith worked out why this matters.
The book's continued relevance is partly that it describes a moral culture that the contemporary world has in many ways abandoned, and partly that it describes conditions of moral cultivation that the AI moment makes newly urgent. If the amplifier carries whatever signal it is given, then the cultivation of a signal worth amplifying becomes the central educational and moral project — and the Theory is, among other things, a handbook for that cultivation.
Origin
Smith delivered the lectures that became The Theory of Moral Sentiments as Professor of Moral Philosophy at the University of Glasgow, where he held the chair from 1752 to 1764. The book was published in 1759 to immediate success and established Smith's reputation across Europe.
Smith revised the book through six editions, making the most substantial changes in the 1790 edition — additions written in the last year of his life that show the moral philosopher's continued concern with the corruption of moral judgment by the pursuit of wealth and rank.
Key Ideas
Sympathy as foundation. Moral life begins in the capacity to enter imaginatively into others' situations — not in reason alone, not in rule-following.
Impartial spectator. The internal judge by which we evaluate our own conduct, cultivated through social experience and weakened by narrow specialization.
Moral cultivation. Virtue is not an endowment but a developmental achievement, requiring the right conditions of experience and reflection.
Complement to Wealth. The market described in The Wealth of Nations operates within a moral culture whose architecture the Theory explores; neither book makes full sense without the other.
Appears in the Orange Pill Cycle
Further reading
- Adam Smith, The Theory of Moral Sentiments (1759; Liberty Fund edition, ed. D.D. Raphael and A.L. Macfie, 1982)
- Charles L. Griswold, Adam Smith and the Virtues of Enlightenment (Cambridge University Press, 1999)
- Ryan Patrick Hanley, Adam Smith and the Character of Virtue (Cambridge University Press, 2009)