A Treatise of Human Nature is a philosophical work by the Scottish philosopher David Hume. The treatise is divided into three sections: "Of the Understanding," "Of the Passions," and "Of Morals." In it, Hume develops a comprehensive theory of human nature and the human mind, exploring topics such as causality, induction, and the relationship between reason and passion. Hume's work is characterized by his empiricist approach, which emphasizes the importance of experience and observation in the formation of knowledge. Treatise of Human Nature is known for its groundbreaking ideas and its radical approach to philosophy.