Commentary on the First Alcibiades of Plato (Cambridge, University Library, MS Kk.5.27)

And these things are concerning the lineage of the philosopher. Next, we must proceed to the subject at hand. The scope of the present dialogue, as Proclus says, is the knowing of oneself. And he confirms this through many arguments. First, from the inscription. For it is inscribed Alcibiades Major, or On Human Nature. "Major" because there is another Alcibiades for him, the "Minor," just as there is Hippias Major and the Minor. Furthermore, he establishes this as the scope from certain small phrases spoken in the dialogue. For it is said in it: "But, my dear friend, obeying me and the inscription at Delphi, know yourself." And again, in the present dialogue, those three terms are distinguished: "I," "mine," and "the things of mine."
l. to him

And from the statement that all who fell in love with Alcibiades’ body did not love Alcibiades,
l. the but one of his possessions. Only Socrates loved Alcibiades. Furthermore, also from the fact that justice and the advantageous are handed down here, being convertible, by which it is clear that the discussion is about the soul. For to the soul alone is the just advantageous, not