The book "The Theory of Moral Sentiments, or An Essay on the Analysis of the Principles by which Man Naturally Judges the Conduct and Character, First of His Neighbors and Then of Himself. To Which Is Added a Dissertation on the Origin" was written by the eminent economist and philosopher Adam Smith. In this work, the author examines the nature of moral feelings in humans and the ways in which we make moral decisions about the behavior and character of other people. Smith analyzes emotions that influence our judgments and behavior, and believes that each person has certain visions of morality, which are formed as a result of communication and interaction with others. He also considers the question of the origin of moral feelings and their evolution in society. This book will help the reader to gain a deeper understanding of the nature of morality, the interaction between people, and their own moral beliefs. It remains relevant even today, helping everyone to think about their own principles and values.