The main themes of the short story “Thank you, M’am” by Langston Hughes are trust and dignity. In what follows you can read an useful discussion about these two themes. Innholdsfortegnelse. Trust; Dignity; Symbols: the blue suede shoes; Motif: food, the door; Trust. Trust is a very important theme in the short story. As you have seen, Mrs. Luella brings the boy home without any trace of.