George MacDonald (2015). “The Complete Novels of George Macdonald (Illustrated): The Princess and the Goblin, The Princess and Curdie, Phantastes, At the Back of the North Wind, Lilith, David Elginbrod, Malcolm, Ranald Bannerman's Boyhood, Wilfrid Cumbermede and many more”, p.9045, e-artnow
William Shakespeare (1838). “Complete Works: With Dr. Johnson's Preface, a Glossary, and an Account of Each Play, and a Memoir of the Author by William Harness”, p.431
"Federalist No. 10. The Same Subject Continued: The Union as a Safeguard Against Domestic Faction and Insurrection" by James Madison, www.congress.gov. November 23, 1787.