There is a line in "A Streetcar Named Desire" spoken by Blanche where she states a fear of dying from eating an unwashed grape. This is by no means one of the most famous lines of the book yet I think of it every time I wash a bunch of grapes.
I remember this line because it is something that happens in everyday life. More specifically it is something that happened in my everyday life. My mother would never allow us to eat a piece of fruit that was not washed. I had a connection with this line and it has stayed with me for all these years.
The fact that a single line from a book I read over 25 years ago has stayed with me for all these years attests to the power of writing.