“Mrs. Cavendish: I am charming to my friends one day, and forget all about them the next.”

“There! Now we're friends!" declared the minx. "Say you're sorry about my sister -""I am desolated!""That's a good boy!”

“I am not mad. I am eccentric perhaps--at least certain people say so; but as regards my profession. I am very much as one says, 'all there.”

“No, my friend, I am not drunk. I have just been to the dentist, and need not return for another six months! Is it not the most beautiful thought?--Poirot”

“I mean, what can you say about how you write your books? What I mean is, first you've got to think of something, and then when you've thought of it you've got to force yourself to sit down and write it. That's all." ~ Mrs. Oliver”

“They all fuss about me so,” she said. “They rub it in that I’m an old woman.”“And you don’t feel like one.”“No, I don’t, Jane. In spite of all my aches and pains–and I’ve got plenty. Inside I go on feeling just like a chit like Gina. Perhaps everyone does. The glass shows them how old they are and they just don’t believe it.”

“My friend, in working upon a case, one does not take into account only the things that are "mentioned". There is no reason to mention many things which may be important. Equally, there is often an excellent reason for not mentioning them.”