Task: Text Categorization
Input (English): One posthumous publication by this psychologist contained the image of a black snake who accompanied Salome and Eljiah; that Elijah figure would eventually transform into Philemon. He described a pairing of contrasexual opposites in another book. In addition to describing (*) syzygy, this psychologist described personality in terms of variations from two individual types, the introvert and the extrovert, and wrote about archetypes. For 10 points, name this author of Psychological Types who studied under Freud and proposed a universal memory accessible to the whole human race, the collective unconscious.
Output (English): Social Science