Description of Comus as he appeared in painting is found in Imagines (Greek Εἰκόνες, translit. Eikones) by Philostratus the Elder, a Greek writer and sophist of the 3rd century AD.
He was especially famous for his inventive imagination, and the elegance and purity of his diction are attested by the epithet Ἀττικώτατος (most Attic) applied to him by Athenaeus and the sophist Phrynichus.
but Plato in his recent dialogues, as Theaetetus or Sophist had a different method to Philosophical discussions, namely Dialectic.