These dialogues engage deeply with epistemology (what is knowledge?) and ontology (what is being?), attempting to define the "Sophist" as a pretender to knowledge.
Unlike the early Socrates, who claimed to have no interest in natural philosophy, the late dialogues incorporate cosmic order and physical nature, notably in the Timaeus . Major Late Dialogues Plato and the Post-Socratic Dialogue
In the Parmenides , Plato presents a radical critique of his own theory of Forms, questioning how they are structured and how things participate in them. These dialogues engage deeply with epistemology (what is