Every man should have aunts. They illustrate the triumph of guess work over logic.

All I needed was a steady table and a typewriter...a marble-topped bedroom washstand table made a good place; the dining-room table between meals was also suitable.

Nobody knows what another person is thinking. They may imagine they do, but they are nearly always wrong.

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.

Jealousy, you know, is usually not an affair of causes. It is much more-how shall I say?-fundamental than that. Based on the knowledge that one's love is not returned. And so one goes on waiting, watching, expecting...that the loved one will turn to someone else.

The past is the father of the present.

When the sea goes down, there will come from the mainland boats and men. And they will find ten dead bodies and an unsolved problem on Indian Island.