What are the motifs in Man and Superman by George Bernard Shaw?

Moral corruption is a recurring idea in this book.The Don Juan story is an age-old tale of an obsessive lover and adventurer who is carried off by the devil after a lifetime of chasing women. It is probably best told by Mozart in his opera Don Giovanni (1787). In Mozart's version, Don Giovanni (Don Juan) woos Donna Anna, who rejects him and whose father, the Commander, he kills in a duel over her honor. Later Don Giovanni and his servant Leporello see a statue of the dead Commander in a cemetery and Don Giovanni jokingly asks it to dinner. The statue nods its head and later appears at dinner, whereupon it chastises Don Giovanni for his reckless life. Then the Devil appears to carry him off, while the police arrive too late to arrest him for the murder of Donna Anna's father.