I could not, then, point out a greater service than this, rendered by our ancestors, nor one more generally beneficial to the Hellenes. But I shall, perhaps, be able to show one more particularly related to their conduct of war, and, at the same time, no less admirable and more manifest to all. For who does not himself know or has not heard from the tragic poets1 at the Dionysia of the misfortunes which befell Adrastus2 at Thebes,