“At my time of life, one knows that the worst is usually true.”

“I often wonder why the whole world is so prone to generalise. Generalisations are seldom if ever true and are usually utterly inaccurate.”

“I never can stand seeing people pleased with themselves,” said Joanna. “It arouses all my worst instincts.”

“Do you know my friend that each one of us is a dark mystery, a maze of conflicting passions and desire and aptitudes?”

“Underneath the quarrels,the misunderstandings, the apparent hostility of everyday life, a real and true affection can exist. Married life, I mused, as I went to bed,was a curious thing.”

“Trains are relentless things, aren't they, Monsieur Poirot? People are murdered and die, but they go on just the same. I am talking nonsense, but you know what I mean.""Yes, yes, I know. Life is like a train, Mademoiselle. It goes on. And it is a good thing that that is so.""Why?""Because the train gets to its journey's end at last, and there is a proverb about that in your language, Mademoiselle.""'Journey's end in lovers meeting.'" Lenox laughed. "That is not going to be true for me.""Yes--yes, it is true. You are young, younger than you yourself know. Trust the train, Mademoiselle, for it is le bon Dieu who drives it."The whistle of the engine came again."Trust the train, Mademoiselle," murmured Poirot again. "And trust Hercule Poirot. He knows.”

“Fey...a Scotch word...It means the kind of exalted happiness that comes before disaster. You know--it's too good to be true.”