Yet, Plato's writings do not seem fictional at all! Another character emerges, with his own philosophy and personality. But how can we form an arguement if so many textbooks that are in circulation right now, and were, state that Plato was a student of Socrates? The textbooks were written by brilliant historians, not that i can name any, but i have to say- it seems extremly unlikely that Plato wrote all dialogue by himself, and were his own ideas. but i may be wrong- I'm sorry- but yes, paradiselost, the existence of some of his teachings, and Plato's writings and Aristophanes' writings- is enough- we hae magneficent text, and that's enpugh to read and to study and to understand.