The word “liberal” is used pejoratively or as a point of pride, depending on your viewpoint. And as such, the definition of liberalism is often misunderstood. New Yorker staff writer Adam Gopnik joins host Krys Boyd to set the record straight by introducing us to the people from history who invented the liberal tradition. His new book is called “A Thousand Small Sanities: The Moral Adventure of Liberalism”(Basic Books).