“fiction is founded on truth... unless things did happen, people couldn't think of them.”

“Faces are tricky unless you can connect up when and where you'd seen them.”

“Why shouldn't I hate her? She did the worst thing to me that anyone can do to anyone else. Let them believe that they're loved and wanted and then show them that it's all a sham.”

“Curious things, habits. People themselves never knew they had them. [Witness for the Prosecution, also published in The Hound of Death and Other Stories.]”

“When you find that people are not telling you the truth---look out!”

“One of the luckiest things that can happen to you in life is to have a happy childhood.”

“The young people think the old people are fools -- but the old people know the young people are fools.”