Who are you? You don't belong to the police?' 'I am better than the police,' said Poirot. He said it without conscious arrogance. It was, to him, a simple statement of fact.
Agatha ChristieIt is ridiculous to set a detective story in New York City. New York City is itself a detective story.
Agatha ChristieThere is nothing so dangerous for anyone who has something to hide as conversation!... A human being, Hastings, cannot resist theopportunity to reveal himself and express his personality which conversation gives him. Every time he will give himself away.
Agatha Christie