“To every problem, there is a most simple solution.”

“A slightly uncommon condition of the some-long-word. Nothing at all serious, but it just needs putting right. A simple treatment.”

“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.”

“Who are you? You don't belong to the police?''I am better than the police,' said Poirot. He said it without conscious arrogance. It was, to him, a simple statement of fact.”

“I am all that there is of the most real.”

“Every murderer is probably somebody's old friend.”

“But I know human nature, my friend, and I tell you that, suddenly confronted with the possibility of being tried for murder, the most innocent person will lose his head and do the most absurd things.”