Martin Farquhar Tupper (1855). “Proverbial Philosophy: A Book of Thoughts and Arguments, Originally Treated : First and Second Series, Complete in One Volume”, p.139
John Locke, Ruth Weissbourd Grant, Nathan Tarcov (1996). “Some Thoughts Concerning Education: And, Of the Conduct of the Understanding”, Hackett Publishing
John Gay (1826). “Gay's Fables and Other Poems: Cotton's Visions in Verse ; Moore's Fables for the Female Sex ; with Sketches of the Authors' Lives”, p.197