Two important dialogues offer crucial insights into mystical and aesthetic aspects of Platonic doctrine. Symposium attempts to find the ultimate manifestation of the love that controls the world, leading to mystic union with eternal and supercosmic beauty. Phaedrus discusses the psychology of love, resulting in the concept of the familiar Platonic "forms" as objects of transcendental emotion.
A systematic treatment of the question, "What is knowledge?," this masterpiece from Plato's later period features a dialogue between Socrates and his student, Theaetetus. Translation by Francis M. Cornford, who provides extensive commentaries.