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

“Sitting here with one's knitting, one just sees the facts.

“Two people rarely see the same thing.”

“People who can be very good can be very bad too.”

“You have a tendency, Hastings, to prefer the least likely. That, no doubt, is from reading too many detective stories.”

“Courage is the resolution to face the unforeseen.”

“It's so much nicer to be a secret and delightful sin to anybody than to be a feather in his cap.”

“To count - really and truly to count - a woman must have goodness or brains.”

“I did not deceive you, mon ami. At most, I permitted you to deceive yourself.”

“Unless you are good at guessing, it is not much use being a detective.”

“The body—the cage—is everything of the most respectable—but through the bars, the wild animal looks out.”

“And then there were none.”

“The human face is, after all, nothing more nor less than a mask.”

“I have no pity for myself either. So let it be Veronal. But I wish Hercule Poirot had never retired from work and come here to grow vegetable marrows.”

“He laughs best who laughs at the end.”

“Best of an island is once you get there - you can't go any farther...you've come to the end of things...”

“Be sure thy sin will find thee out.”

“One of the oddest things in life, as we all know, is the way that when you have heard a thing mentioned, within twenty-four hours you nearly always come across it again.”

“Fear is incomplete knowledge”

“Our weapon is our knowledge. But remember, it may be a knowledge we may not know that we possess.”

“A great many men are mad, and no one knows it. They do not know it themselves”

“She was a lucky woman who had established a happy knack of writing what quite a lot of people wanted to read.”

“They tried to be too clever---and that was their undoing.”

“Elephants can remember, but we are human beings and mercifully human beings can forget.”