“It is the brain, the little gray cells on which one must rely. One must seek the truth within--not without." ~ Poirot”

“One must find the source within one's own Self, one must possess it. Everything else was seeking -- a detour, an error.”

“Excuse me, Monsieur Poirot. If you'd like to ask any questions, I'm sure the doctor wouldn't mind.Of course not. Of course not. Great admirer of yours, Monsieur Poirot. Little gray cells -- order and method. I know all about it.”

“... what would Poirot do? Poirot wouldn't flap around in a panic. He'd stay calm and use his little grey cells and recall some tiny, vital detail which would be the clue to everything.”

“One must have a heart of stone to read the death of little Nell without laughing.”

“To be an ignorant man, to posses nothing but a fragile word, to find oneself as if relying upon darkness and nothingness: that is the position from which one must be constantly setting out.”