John Stuart Mill, Thomas Carlyle (2010). “Autobiography of J.S. Mill & on Liberty; Characteristics, Inaugural Address at Edinburgh & Sir Walter Scott”, p.377, Cosimo, Inc.
"Talking in Our Pajamas: A Conversation with Sandra Cisneros on Finding Your Voice, Fear of Highways, Tacos, Travel, and the Need for Peace in the World". Interview with Ruth Behar, quod.lib.umich.edu. 2008.
George Washington, Andrew Jackson (1862). “Washington's Farewell Address: The Proclamation of Jackson Against Nullification, and the Declaration of Independence”, p.10