Several characters in Shakespeare's plays have strong skills in rhetoric and oration: for example, Mark Antony in the play Julius Caesar, who is able to sway the fickle populace of Rome from supporting the conspirators to hating them in a single speech. Shakespeare himself must have had some skills in writing words to sway audiences, even if in a different context. So I wonder if he studied any classical texts on rhetoric (Plato, Aristotle, Cicero, Quintilian, etc.) or if he learned about these skills by practising them or from other sources.
Is there any evidence that Shakespeare did, or did not, read classical texts on rhetoric?