Because the Sophist treats these matters , it is often taken to shed light on Plato 's Theory of Forms .
Because the Sophist treats these matters , it is often is compared with the Parmenides , which criticized what is often taken to be the theory of forms .
Because the Sophist treats these matters , it is often taken to shed light on Plato 's Theory of Forms and is compared with the Parmenides , which criticized what is often taken to be the theory of forms .