"Never do I deceive you, Hastings. I only permit you to deceive yourself."

“Words had become to him a means of obscuring facts — not of revealing them. He was an adept in the art of the useful phrase — that is to say the phrase that falls soothingly on the ear and is quite empty of meaning.”

“The rottenness comes from within.”

“It would be difficult Bland thought, to forget Hercule Poirot, and this not entirely for complimentary reasons.”

“Ah, my friend, one may live in a big house and yet have no comfort.”

“‘I have often noticed that being a devoted wife saps the intellect,’ murmured Tommy.”

“We had three servants, which was a minimum then.”