Well, Campbell did write a difinitive book on the mythological tale called 'The Hero With A Thousand Faces.' The idea was that there is One mythological tale that is, in Jungian terms, archetypical in all human societies. It involves a variety of phases and travails that the Hero must go through in order to complete his Heroic Journey. This tale is told in many different ways, but is pervasive throughout human history and in most, if not all cultures.
There are three main twentieth century mythological stories that utilize or objectify the Hero's Journey. They are The Star Wars Trilogy, The Matrix Trilogy and Tolkien's Lord of The Rings trilogy. Supposedly, the reason for the immense success of all three of these tales, great movie making/bookwriting notwithstanding, is that they utilize this archetypical storyline and all people identify with it on a deep psycho-spiritual level.
Tolkien's LOR Trilogy was published just a few short years after Campbell's Hero book was published. Although Tolkien had been working on LOR for many years prior to publication, it is still possible that he borrowed from Campbell for certain elements of his books. But I'm not sure that's the case, because Tolkien and C. S. Lewis were founders of a group called 'The Inklings' which met at a local pub in Cambridge, England, I believe, on Tuesday evenings for a number of years, and they used to discuss mythology amongst themselves, as well as a variety of other topics.
As for the quote noted at the beginning of this thread, it is familiar, but I don't know how to identify it.
