Attributed to Aristotle in Diogenes Laertius "The Lives and Opinions of Eminent Philosophers" translated by C. D. Yonge and Henry G. Bohn (p. 188), 1853.
William Bayle Bernard, Samuel Lover (1874). “The Life of Samuel Lover, R. H. A.: Artistic, Literary, and Musical, with Selections from His Unpublished Papers and Correspondence”, p.113
James Montgomery Bailey (1873). “Life in Danbury: Being a Brief But Comprehensive Record of the Doings of a Remarkable People, Under More Remarkable Circumstances, and Chronicled in a Most Remarkable Manner”, p.230
Johann Wolfgang von Goethe (1989). “Conversations of German Refugees ; Wilhelm Meister's Journeyman Years, Or, The Renunciants”, p.296, Princeton University Press