with appointments at Harvard Medical School and the Mass General Hospital. In addition to the book, How Emotions Are Made, she has published over 100 scholarly papers. Please join me in welcoming Lisa Barrett. All right, finally. Our guest is the Johnstone Professor of Psychology at Harvard University, a two-time Pulitzer prize finalist and author of the bestselling books including, How the Mind Works and The Language Instinct, a pioneer and champion of evolutionary psychology, named one of Time Magazine's 100 Most Influential People, please welcome Steven Pinker.