This week, we were honored to bring on a guest we’ve hoped to have on for years — Susan Cain. In 2013, she released her book Quiet: the Power of Introverts in a World that Can’t Stop Talking. But today, we brought Susan on to talk about her new book, Bittersweet: How Sorrow and Longing Make Us Whole , another masterwork that reached #1 on the New York Times bestseller list and has been praised by Brene Brown, Glennon Doyle, and Adam Grant. This book touched us deeply with its key truth: that somehow, feelings of deep pain and deep joy are often intimately linked. In Susan’s words, “Bittersweetness is a tendency to states of long­ing, poignancy, and sorrow; an acute aware­ness of passing time; and a curiously piercing joy at the beauty of the world. It recognizes that light and dark, birth and death—bitter and sweet—are forever paired.” In this conversation with Susan, we talked about how sadness may be the strongest agent available to us for connection to others, how embracing bittersweetness may be the antidote to toxic perfectionism, and how longing is the very essence of faith. Susan’s books have been translated into 40 languages, and spent over eight years on The New York Times best seller list. Fast Company magazine has named Susan one of its Most Creative People in Business. Her writing has appeared in The New York Times, The Atlantic, The Economist, The Wall Street Journal, and many other publications. Her TED talks on the power of introverts and the hidden power of sad songs and rainy days have been viewed over 40 million times. She is an honors graduate of Princeton and Harvard Law School. She lives in the Hudson River Valley with her husband, two sons and golden doodle, Sophie. You can find out more about Susan and her work at Check out Susan's 30-day “Bittersweet: Practices and Reflections course” at