Agatha Christie's quote

Dame Agatha Mary Clarissa Christie, DBE (née Miller; 15 September 1890 – 12 January 1976) was a British crime writer of novels, short stories, and plays. She also wrote romances under the name Mary Westmacott, but she is best remembered for her 66 detective novels and more than 15 short story collections, most of which revolve around the investigations of such characters as Hercule Poirot, Miss Jane Marple and Tommy and Tuppence.