Douglas MacArthur's address to the Annual Stockholders Sperry Rand Corporation in New York (July 30, 1957) as quoted in "General MacArthur Speeches and Reports 1908-1964" edited by Edward T. Imparato (p. 206), June 14, 2000.
Yvon Chouinard (2016). “Let My People Go Surfing: The Education of a Reluctant Businessman--Including 10 More Years of Business Unusual”, p.119, Penguin