The Theory of Moral Sentiments
 Or, an Essay Towards an Analysis of the Principles by Which Men Naturally Judge Concerning the Conduct and Character, First of Their Neighbours, and Afterwards of Themselves. to Which Is Added, a Dissertation on the Origin of Languages.

by Adam Smith

"The Theory of Moral Sentiments" by Adam Smith is a philosophical work published in 1759. It explores how humans form moral judgments through sympathy—the ability to imaginatively understand others' feelings by placing ourselves in their situations. Smith examines the foundations of ethical behavior, the limits of human moral capacity, and how self-interest paradoxically serves society's broader good. The book provided the philosophical groundwork for Smith's later economic theories, offering insights into human nature that bridge moral philosophy and social behavior.