One is alone when the last one who remembers is gone.

One does see so much evil in a village,' murmured Miss Marple in an explanatory voice.

I've a theory that one can always get anything one wants if one will pay the price. And do you know what the price is, nine times out of ten? Compromise.

And yet," said Poirot, "suppose an accident-" "Ah, no, my friend-" "From your point of view it would be regrettable, I agree. But nevertheless let us just for one moment suppose it. Then, perhaps, all these here are linked together - by death.

She didn't give George any too easy a time when she was alive. She was one of those semi-invalids – I believe she had really something wrong with her, but whatever it was she played it for all it was worth. She was capricious, exacting, unreasonable. She complained from morning to night. George was expected to wait on her, hand and foot and everything he did was always wrong and he got cursed for it. Most men, I'm fully convinced, would have hit her with a hatchet long ago.

I really cannot understand the point of what you're saying. Really,' said Clotilde, looking at her. 'What a very extraordinary person you are. What sort of a woman are you? Why are you talking like this? Who are you?' Miss Marple pulled down the mass of pink wool that encircled her head, a pink wool scarf of the same kind that she had once worn in the West Indies. 'One of my names,' she said, 'is Nemesis.' 'Nemesis? And what does that mean?' 'I think you know,' said Miss Marple. 'You are a very well educated woman. Nemesis is long delayed sometimes, but it comes in the end.

Evil is not something superhuman, it's something less than human.