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 “The Life of Samuel Lover, R. H. A.: Artistic, Literary, and Musical, with Selections from His Unpublished Papers and Correspondence”, p.113
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.
Mahatma Gandhi (1965). “Glorious Thoughts of Gandhi: Being a Treasury of about Ten Thousand Valuable and Inspiring Thougths of Mahatma Gandhi, Classified Under Four Hundred Subjects”