Hannah Arendt (1972). “Crises of the Republic: Lying in Politics; Civil Disobedience; On Violence; Thoughts on Politics and Revolution”, p.17, Houghton Mifflin Harcourt
Henri J.M. Nouwen (2016). “The Return of the Prodigal Son Anniversary Edition: A Special Two-in-One Volume, including Home Tonight”, p.80, Convergent Books
"Rep. Paul Ryan: “He underplayed the enormity of the task before us, which is to confront a debt crisis”, cnnpressroom.blogs.cnn.com. February 13, 2013.