Arthur Conan Doyle Quotes about Math
Sir Arthur Conan Doyle (2015). “Sherlock Holmes: The Novels: (Penguin Classics Deluxe Edition)”, p.93, Penguin
"A Scandal in Bohemia" (1891)
Arthur Conan Doyle (2007). “The New Annotated Sherlock Holmes: The Complete Short Stories: The Adventures of Sherlock Holmes and The Memoirs of Sherlock Holmes (Non-slipcased Edition) (Vol. 1) (The Annotated Books)”, p.151, W. W. Norton & Company