ides the orator and Lycurgus, and in this Polemo agrees. Sabinus makes Demosthenes his pupil, quoting, in the fourth book of his Materials for Criticism, Mnesistratus of Thasos as his authority. And it is not improbable.@ Now, as you are an enthusiastic Platonist, and rightly so, and as you eagerly seek out that philosopher’s doctrines in preference to all others, I have thought it necessary to give some account of the true: nature of his discourses, the arrangement of the dialogues, and the method of his inductive procedure, as far as possible in an elementary manner and in main outline, in order that the facts I have collected respecting his life may not suffer by the omission of his doctrines. For, in the words of the proverb, it would be taking owls to Athens, were I to give you of all people the full particulars. They say that Zeno the Eleatic was the first to write dialogues. But, according to Favorinus in his Memorabilia, Aristotle in the first book of his dialogue On Poets asserts that it was Alexamenus of Styra or Teos. In my opinion Plato, who brought this form of writing to perfection, ought to be adjudged the prize for its invention as well as for its embellishment. A dialogue is a discourse consisting of question and answer on some philosophical or political subject, with due regard to the characters of the persons introduced and the choice of diction. Dialectic is the art of discourse by which we either refute or establish some proposition by means of question and answer on the part of the interlocutors.