Marcus Tullius Cicero (1855). “Cicero's Three books of offices, or moral duties: also his Cato Major, an essay on old age; Lælius, an essay on friendship; Paradoxes; Scipio's dream; and Letter to Quintus on the duties of a magistrate”, p.181
Samuel Daniel (1718). “The Poetical Works of Mr. Samuel Daniel, Author of the English History: To which is Prefix'd, Memoirs of His Life and Writings”, p.283