Who is Moses, Sigmund Freud, Karl Marx from Friedman's Fables and what is their importance?

Moses, Sigmund Freud, Karl Marx are essentially interpretations..... manifestations of the author's thematic concern with responsibility. Specifically, this is apparent in individuals who place too much responsibility for their personal well being on the teachings of others, as opposed to on their own needs, experiences, and beliefs. Friedman attributes each of these figures with a particular moral and/or intellectual status such as the Hebrew lawgiver Moses, a man who might be called the "lawgiver" of psychoanalysis in Freud, and a man who might be called the "lawgiver" of left-wing, socialist politics and morality in Marx.