Characters of Shakespeare's Plays

According to the Preface: "It is observed by Mr. Pope, that 'If ever any author deserved the name of an ORIGINAL, it was Shakespeare. Homer himself drew not his art so immediately from the fountains of nature; it proceeded through AEgyptian strainers and channels, and came to him not without some tincture of the learning, or some cast of the models, of those before him. The poetry of Shakespeare was inspiration: indeed, he is not so much an imitator, as an instrument of nature;  and it is not so just to say that he speaks from her, as that she speaks through him."