Agatha Christie — "The human face is, after all, nothing more nor less than a mask."

"I have always believed to write a good detective story, you must know all about detective stories."

"Never tell everything you know. It's a good way to lose friends."

"I like living. I have sometimes been wildly, despairingly, acutely miserable, racked with sorrow, but through it all I still know quite certainly that just to be alive is a grand thing."

"Crime is terribly revealing. Try and vary your methods as you will, your tastes, your habits, your attitude of mind, and your soul is revealed by your actions."

"It is a curious thought, but it is only when you see people looking ridiculous that you realize just how much you love them."