"The Intelligent Investor: The Classic Text on Value Investing". Book by Benjamin Graham. Chapter I, What the Intelligent Investor Can Accomplish, p. 17, 1949.
"Wendell Potter on “Deadly Spin: An Insurance Company Insider Speaks Out on How Corporate PR is Killing Health Care and Deceiving Americans”". Interview with Amy Goodman, www.democracynow.org. November 16, 2010.