The Mysterious Affair at Styles: Poirot's First Case (Hercule Poirot, #1)

by Agatha Christie

“You gave too much rein to your imagination. Imagination is a good servant, and a bad master. The simplest explanation is always the most likely.”

“You see,” he said sadly, “you have no instincts.” “It was intelligence you were requiring just now,” I pointed out. “The two often go together,” said Poirot enigmatically.