One little Indian boy left all alone; He went and hanged himself and then there were none.

One never quite allows for the moron in our midst.

Evil never goes unpunished, Monsieur. But the punishment is sometimes secret.

Any woman can fool a man if she wants to and if he's in love with her.

Women can accept the fact that a man is a rotter, a swindler, a drug taker, a confirmed liar, and a general swine, without batting an eyelash, and without its impairing their affection for the brute in the least. Women are wonderful realists.

There's no agony like [getting started]. You sit in a room, biting pencils, looking at a typewriter, walking about, or casting yourself down on a sofa, feeling you want to cry your head off.

I know nothing about pistols and revolvers, which is why I usually kill off my characters with a blunt instrument or better with poisons. Besides, poisons are neat and clean and really exciting... I do not think I could look a really ghastly mangled body in the face. It is the means that I am interested in. I do not usually describe the end, which is often a corpse.