Jonathan Haidt of New York University discusses, with EconTalk host and Hoover research fellow Russell Roberts, Haidt’s new book, The Righteous Mind. Topics include the development of morality and human nature; moral foundations theory and humans’ embedded antipathy to evil, as evidenced by infants and toddlers watching puppet shows; unique moral distinctions and the world perceptions of Western, educated, industrialized, and democratic cultures; and relativist versus absolutist morality.