The Theory of Moral Sentiments

In this work, often overshadowed by his seminal treatise 'The Wealth of Nations,' Adam Smith probes:The complex nature of human morality
The inherent human capacity for empathy
The intricate interplay of passion and reason, and
How our moral thinking shapes our social lives, relationships, and societal structures.

Smith proposes that our sense of morality arises from empathy rather than on a religious doctrine or abstract reasoning. In doing so, it provides a basis for understanding the moral underpinnings of economic behavior and sheds light on the social bonds that hold societies together. It also offers insights into issues of social justice, welfare, and how we should treat others.
As a complement to "The Wealth of Nations," this book has
profoundly impacted the current understanding of capitalism and morality, together
with societal structures and norms. Long considered a foundational text for
moral philosophers and social scientists, Smith's book is still read widely
today.