History of the Peloponnesian War

The Syracusans and their allies now mustered and took up the spoils and as many prisoners as they could, and went back to the city.

The rest of their Athenian and allied captives were deposited in the quarries, this seeming the safest way of keeping them; but Nicias and Demosthenes were butchered, against the will of Gylippus, who thought that it would be the crown of his triumph if he could take the enemy's generals to Lacedaemon.

One of them, as it happened, Demosthenes, was one of her greatest enemies, on account of the affair of the island and of Pylos; while the other, Nicias, was for the same reasons one of her greatest friends, owing to his exertions to procure the release of the prisoners by persuading the Athenians to make peace.

For these reasons the Lacedaemonians felt kindly towards him; and it was in this that Nicias himself mainly confided when he surrendered to Gylippus. But some of the Syracusans who had been in correspondence with him were afraid, it was said, of his being put to the torture and troubling their success by his revelations; others, especially the Corinthians, of his escaping, as he was wealthy, by means of bribes, and living to do them further mischief; and these persuaded the allies and put him to death.

This or the like was the cause of the death of a man who, of all the Hellenes in my time, least deserved such a fate, seeing that the whole course of his life had been regulated with strict attention to virtue.