All too often in recent decades social, cultural, and political movements have worked in isolation from one another. But there’s so much to learn so none has to reinvent the wheel. Among the more successful movements has been that of gay rights. NYU professor of Sociology of Education Lisa M.Stulberg, in her new book, talks about some of the challenges and opportunities shared by all social political and cultural empowerment movements. It’s wasteful not to learn from one another.