"The 100 best nonfiction books: No 68 - Narrative of the Life of Frederick Douglass, an American Slave by Frederick Douglass (1845)" by Robert McCrum, www.theguardian.com. May 22, 2017.
Speech accepting nomination as Republican candidate for president in Elwood, Indiana (August 17, 1940); as quoted in "This Is Wendell Willkie" by Wendell Willkie, (p. 273 - 274), 1940.