"Falling short: seven writers reflect on failure" by Diana Athill, Margaret Atwood, Julian Barnes, Anne Enright, Howard Jacobson, Will Self, Lionel Shriver, www.theguardian.com. June 22, 2013.
Christopher Columbus, Bartolomé de las Casas (1827). “Personal Narrative of the First Voyage of Columbus to America: From a Manuscript Recently Discovered in Spain”, p.10