But none of his extant writings is so much dialectic, like a Platonic dialogue.
The Platonic dialogue Hipparchus attributes it to Hipparchus, son of Peisistratus.
Again, the Platonic dialogue Hip parchus (which though not genuine is probably earlier than the Alexandrian times) asserts that Hipparchus, son of Peisistratus, first brought the poems to Athens, and obliged the rhapsodists at the Panathenaea to follow the order of the text, " as they still do," instead of reciting portions chosen at will.
The epistle, on the other hand, rather takes the place of a public speech, it is written with an audience in view, it is a literary form, a distinctly artistic effort aiming at permanence; and it bears much the same relation to a letter as a Platonic dialogue does to a private talk between two friends.
Gorgias is the central figure in the Platonic dialogue Gorgias.