Francis Quarles (1844). “Enchiridion Institutions, Essays and Maxims, political, moral & divine. Divided into four centuries. By Francis Quarles”, p.17
John Buchan (2016). “JOHN BUCHAN Ultimate Collection: Spy Classics, Thrillers, Adventure Novels & Short Stories, Including Historical Works and Essays (Illustrated): Scottish Poems, World War I Books & Mystery Novels like Thirty-Nine Steps, Greenmantle, Huntingtower, No Man’s Land, Prester John and many more”, p.2222, e-artnow