In plain words, ours
In my view the biggest event in Greek history: glorious for the winners, a catastrophe for the losers. Fleet, army, everything was destroyed, and few came home.
This was the greatest Hellenic achievement of any in this war, or, in my opinion, in Hellenic history; at once most glorious to the victors, and most calamitous to the conquered. They were beaten at all points and altogether; all that they suffered was great; they were destroyed, as the saying is, with a total destruction, their fleet, their army—everything was destroyed, and few out of many returned home.
Thucydides, History of the Peloponnesian War 7.87.5–6Translated by Richard Crawley (1874)Read the full passage (Thucydides, History of the Peloponnesian War 7.87.5–6, opens scaife.perseus.org)