“The only clue to what is in people's minds is in their behavior. If a man behaves strangely, oddly, is not himself--Then you suspect him?No. That is just what I mean. A man whose mind is evil and whose intentions are evil is conscious of that fact and he knows that he must conceal it all costs. He dare not, therefore, afford any unusual behavior.”

English author, detective fiction writer

Agatha Christie was an English author, best known for her detective fiction. She lived under the name Agatha Christie and became one of the most widely read writers of the 20th century. She wrote 66 detective novels and 14 short-story collections, including stories built around Hercule Poirot, Tommy and Tuppence, and Miss Marple. Her work is especially associated with mystery and detective writing, and she is widely regarded as one of the greatest writers of all time.