Thomas Hobbes (1840). “The English Works of Thomas Hobbes of Malmesbury: Dialogue between a philosopher and a student of the common laws in England. Behemoth: The history of the causes of the civil wars of England. The whole art of rhetoric. The art of rhetoric, plainly set forth. The art of sophistry”, p.174
Thomas Hobbes (1750). “The Moral and Political Works of Thomas Hobbes of Malmesbury: Never Before Collected Together : To which is Prefixed, the Author's Life, Extracted from that Said to be Written by Himself, ...”, p.119