in fact, dialectic; it is the living, breathing discourse of one who knows, of which the written word can only be called an image. The one who knows uses the art of dialectic rather than writing: "The dialectician chooses a proper soul and plants and sows within it discourse accompanied by knowledge—discourse capable of helping itself as well as the man who planted it, which is not barren but produces a seed from which more discourse grows in the character of others. Such discourse makes the seed forever immortal and renders the man who has it happy as any human being can be." Interpretations and themes Chariot allegory Plato paints the picture of a Charioteer () driving a chariot pulled by two winged horses: "First the charioteer of the human soul drives a pair, and secondly one of the horses is noble and of noble breed, but the other quite the opposite in breed and character. Therefore in our case the driving is necessarily difficult and troublesome." The Charioteer represents intellect, reason, or the part of the soul that must guide the soul to truth; one horse represents rational or moral impulse or the positive part of passionate nature (e.g., righteous indignation); while the other represents the soul's irrational passions, appetites, or concupiscent nature. The Charioteer directs the entire chariot/soul, trying to stop the horses from going different ways, and to proceed towards enlightenment. Plato describes a "great circuit" which souls make as they follow the gods in the path of enlightenment. Those few souls which are fully enlightened are able to see the world of the forms in all its glory. Some souls have difficulty controlling the black horse, even with the help of the white horse. They may bob up into the world of the forms, but at other times enlightenment is hidden from them. If overcome by the black horse or forgetfulness, the soul loses its wings and is pulled down to earth. Should that happen, the soul is incarnated into one of nine kinds of person, according to how much truth it beheld. In order of decreasing levels of truth seen, the categories are: (1) philosophers, lovers of beauty, men of culture, or those dedicated to love; (2) law-abiding kings or civic leaders; (3) politicians, estate-managers or businessmen; (4) ones who specialize in bodily health; (5) prophets or mystery cult participants; (6) poets or imitative artists;