Early in 1967 Highsmith's agent told her why her books did not sell in paperback in America. It was, said Patricia Schartle Myrer, because they were 'too subtle', combined with the fact that none of her characters were likeable. 'Perhaps it is because I don't like anyone,' Highsmith replied. 'My last books may be about animals'.

Charles Schwab: Be friends with everybody. When you have friends you will know there is somebody who will stand by you. You know the old saying, that if you have a single enemy you will find him everywhere. It doesn’t pay to make enemies. Lead the life that will make you kind and friendly to everyone about you, and you will be surprised what a happy life you will live.