Wolfgang Mieder, Winston Churchill (1995). “The Proverbial Winston S. Churchill: An Index to Proverbs in the Works of Sir Winston Churchill”, Westport, Conn. : Greenwood Press
Jean Cocteau (1926*). “A Call to Order, Written Between the Years 1918 and 1926 and Including "Cock and Harlequin", "Professional Secrets", and Other Critical Essays”
"John Lyly, 'Euphues, To the Gentlemen Readers'". Hoyt's New Cyclopedia Of Practical Quotations V2: Drawn From The Speech And Literature Of All Nations, Ancient And Modern (1922), Book by Kate Louise Roberts, 2010.
Shunryu Suzuki, Mel Weitsman, Michael Wenger (1999). “Branching Streams Flow in the Darkness: Zen Talks on the Sandokai”, p.53, Univ of California Press