The Eight Books of Thucydides' History, translated by R. Crawley.
Chapter XVIII : Seventeenth Year of the War—The Sicilian Campaign—Affair of the Hermae—Departure of the Expedition
Chapter XIX : Seventeenth Year of the War—Parties at Syracuse—Story of Harmodius and Aristogiton—Disgrace of Alcibiades
Chapter XX : Seventeenth and Eighteenth Years of the War—Inaction of the Athenian Army—Alcibiades at Sparta—Investment of Syracuse
Seventeenth Year of the War—The Sicilian Campaign—Affair of the Hermae—Departure of the Expedition
The same winter the Athenians resolved to sail again to Sicily, with a greater armament than that under Laches and Eurymedon, and, if possible, to conquer the island; most of them being ignorant of its size and of the number of its inhabitants, Hellenic and barbarian, and of the fact that they were undertaking a war not much inferior to that against the Peloponnesians. For the voyage round Sicily in a merchantman is not far short of eight days; and yet, large as the island is, there are only two miles of sea to prevent its being mainland.
Promote Greek Learning
Reference address : http://www.ellopos.net/elpenor/greek-texts/ancient-greece/thucydides/history-6.asp