Going Rogue: An American Life (2009), p. 217 http://books.google.com/books?id=Wx00mzMRGH8C&pg=PA217&dq=%22But+I+didn't+believe+in+the+theory%22, quoted in Memoir Is Palin’s Payback to McCain Campaign, The New York Times, 2009-11-14 https://www.nytimes.com/2009/11/15/books/15book.html?_r=2&pagewanted=2&ref=books,
2014
Quotes from book
Going Rogue: An American Life
Going Rogue: An American Life is a personal and political memoir by politician Sarah Palin, former governor of Alaska and 2008 Republican candidate for U.S. Vice President on the ticket with Senator John McCain. She wrote it with Lynn Vincent.