Epictetus, Marcus Aurelius, Lucius Annaeus Seneca (2016). “Stoic Six Pack: Meditations of Marcus Aurelius, Golden Sayings, Fragments and Discourses of Epictetus, Letters from a Stoic and The Enchiridion”, p.78, Enhanced Media Publishing
Doris May Lessing (1979). “Shikasta: re, colonised planet 5 : personal, psychological, historical documents relating to visit by Johor (George Sherban) emissary (grade 9) 87th of the period of the last days”, Knopf
Edward Gibbon (2016). “EDWARD GIBBON Premium Collection: Historiographical Works, Memoirs & Letters: Including "The History of the Decline and Fall of the Roman Empire”, p.731, e-artnow