Thinking Quotes - Page 48
C. S. Lewis (2003). “A Mind Awake: An Anthology of C. S. Lewis”, p.58, Houghton Mifflin Harcourt
Agatha Christie (1943). “Triple Threat: Exploits of Three Famous Detectives: Hercule Poirot, Harley Quin and Tuppence”
John Von Neumann, F. Bródy, Tibor Vámos (1995). “The Neumann Compendium”, p.620, World Scientific
"Constantinople". Book by Edmondo De Amicis, 1877.
C. S. Lewis (1998). “C. S. Lewis on Joy”, Thomas Nelson Incorporated
"The Plain Dealer" (Cleveland Plain Dealer) Newspaper, October 24, 1932.