Susan Cain’s ‘Bittersweet’ Explores the Upside of Sadness Susan Cain’s new book examines how sadness makes us whole. Author: Pilar Guzman Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Advertisements{ "slotId": "6845006044", "unitType": "responsive", "resize": "auto" }