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

"It is my experience that no one, in the course of conversation, can fail to give themselves away sooner or later. Everyone has an irresistible urge to talk about themselves."

"The truth, however ugly in itself, is always curious and beautiful to seekers after it."

"Many homicidal lunatics are very quiet, unassuming people. Delightful fellows."

"Never go back to a place where you have been happy. Until you do it remains alive for you. If you go back it will be destroyed."