V. This victory effected and Megara secured--although Aegina still held out, and although the fate of the Egyptian expedition was still unknown--the wonderful activity of the government commenced what even in times of tranquillity would have been a great and arduous achievement. To unite their city with its seaports, they set to work at the erection of the long walls, which extended from Athens both to Phalerus and Piraeus. Under Cimon, preparations already had been made for the undertaking, and the spoils of Persia now provided the means for the defence of Athens. Meanwhile, the Spartans still continued at the siege of Ithome. We must not imagine that all the helots had joined in the revolt. This, indeed, would be almost to suppose the utter disorganization of the Spartan state. The most luxurious subjects of a despotism were never more utterly impotent in procuring for themselves the necessaries of life, than were the hardy and abstemious freemen of the Dorian Sparta. It was dishonour for a Spartan to till the land--to exercise a trade. He had all the prejudices against any calling but that of arms which characterized a noble of the middle ages. As is ever the case in the rebellion of slaves, the rise was not universal; a sufficient number of these wretched dependants remained passive and inert to satisfy the ordinary wants of their masters, and to assist in the rebuilding of the town. Still the Spartans were greatly enfeebled, crippled, and embarrassed by the loss of the rest: and the siege of Ithome sufficed to absorb their attention, and to make them regard without open hostilities, if with secret enmity, the operations of the Athenians. The Spartan alliance formally dissolved --Megara, with its command of the Peloponnesus seized--the Doric city of Corinth humbled and defeated--Aegina blockaded; all these--the Athenian proceedings--the Spartans bore without any formal declaration of war.