History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
On the side of the Athenians, the heavy-armed formed their whole line eight deep, being equal in numbers to their adversaries, with the cavalry on each flank. As for lightarmed regularly equipped, there were neither any present on that occasion, nor had the state ever raised any. Such as had joined in the invasion, though many times more numerous than those on the other side, had, for the most part, followed unarmed; inasmuch as there was a levy
en masseof foreigners who were present, as well as of citizens; and on their first setting out for home, they did not, with a few exceptions, keep to their standards.
When the armies were formed in line, and now on the point of engaging, Hippocrates, the general, passed along the Athenian ranks, and encouraged them, by speaking as follows: