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.52
John Dryden (1717). “The Dramatick Works of John Dryden, Esq: Don Sebastian, king of Portugal. Amphitryon: or, The two Sosia's. Cleomenes, the Spartan heroe. King Arthur. Love triumphant”