The happy people are failures because they are on such good terms with themselves they don't give a damn.

a lot of trouble has been caused by memoirs. Indiscreet revelations, that sort of thing. People who have been close as an oyster all their lives seem positively to relish causing trouble when they themselves shall be comfortably dead.

Three months seems to me quite a reasonable time to complete a book, if one can get right down to it.

That is what I mean. A bath! The receptacle of porcelain, one turns the taps and fills it, one gets in, one gets out and ghoosh - ghoosh - ghoosh, the water goes down the waste pipe!" "M. Poirot are you quite mad?" "No, I am extremely sane.

If I were at any time to set out on a career of deceit, it would be of Miss Marple that I should be afraid.

Wonderful things, horses. Never know what they will do, or won't do.

It is curious - but you cannot make a revolution without honest men. ... Every revolution has had its honest men. They are soon disposed of afterwards.