Langston Hughes, Dolan Hubbard (2003). “The Collected Works of Langston Hughes: Works for children and young adults: poetry, fiction, and other writing”, p.77, University of Missouri Press
"The Ballot or The Bullet (Cleveland Version)". Malcolm X's speech at Cory Methodist Church in Cleveland, Ohio (April 3, 1964) as quoted in "Malcolm X Speaks: Selected Speeches and Statements" edited by George Breitman (pp. 23-44), 1965.
Orison Swett Marden (1897). “Rising in the World: Or, Architects of Fate; a Book Designed to Inspire Youth to Character Building, Self-culture and Noble Achievement”
John Dryden (1808). “The Works of John Dryden: Now First Collected in Eighteen Volumes. Illustrated with Notes, Historical, Critical, and Explanatory, and a Life of the Author”, p.334