Literature
The Moriarty Principle pt. 1
Upon hearing the term ‘the Moriarty Principle’, one might assume that the idea’s origin lies in the works of Sir Arthur Conan Doyle, but they would be wrong. The first inkling of it appears in the writings of Plato, who believed that humans were originally born with twice as many limbs and faces, and Zeus, fearing their power, split them in two. The popular interpretation of this concept is that it speaks of the idea of soul mates: that each living person has a missing piece to them found in another human being. Once again, most would be wrong.
No, the beings described by Plato were only an elite few paragons of humanity.