You know, Emily was a selfish old woman in her way. She was very generous, but she always wanted a return. She never let people forget what she had done for them - and, that way she missed love.

More children suffer from interference than from non-interference.

Love is not everything ... It is only when we are young that we think it is.

Never tell all you know—not even to the person you know best.

It is my experience that no one, in the course of conversation, can fail to give themselves away sooner or later. Everyone has an irresistible urge to talk about themselves.

I can't imagine why everybody is always so keen for authors to talk about writing. I should have thought it was an author's business to write, not talk.

You've a pretty good nerve," said Ratchett. "Will twenty thousand dollars tempt you?" It will not." If you're holding out for more, you won't get it. I know what a thing's worth to me." I, also M. Ratchett." What's wrong with my proposition?" Poirot rose. "If you will forgive me for being personal - I do not like your face, M. Ratchett," he said.