An incomplete engraving

At the entrance to the temple of Apollo at Delphi, stood written the words gnōthi seauton, know thyself.

But anyone who's read Dante Alighieri understands the Delphic engraving to have been incomplete, for a true knowledge of oneself is an inward gaze, a contemplation of one's own heart. Or as Dante puts it in Vita Nova, Vide cor tuum, See your heart – b…