The elevating effect of the Persian wars was chiefly felt in Athens. It was there that the grand development of pure art, literature, and science took place. As to Sparta, she remained barbarous as she had ever been; the Spartans continuing robbers and impostors, in their national life exhibiting not a single feature that can be commended. Mechanical art reached its perfection at Corinth; real art at Athens, finding a multitude not only of true, but also of new expressions. Before Pericles the only style of architecture was the Doric; his became at once the age of perfect beauty. It also became the age of freedom in thinking and departure from the national faith. In this respect the history of Pericles and of Aspasia is very significant. His, also, was the great age of oratory, but of oratory leading to delusion, the democratical forms of Athens being altogether deceptive, power ever remaining in the hands of a few leading men, who did everything. The true popular sentiment, as was almost always the case under those ancient republican institutions, could find for itself no means of expression. The great men were only too prone to regard their fellow-citizens as a rabble, mere things to be played off against one another, and to consider that the objects of life are dominion and lust, that love, self-sacrifice, and devotion are fictions; that oaths are only good for deception. [Sidenote: The treaty with Persia.] Though the standard of statesmanship, at the period of the Persian wars, was very low, there can be no doubt that among the Greek leaders were those who clearly understood the causes of the Asiatic attack; and hence, with an instinct of self-preservation, defensive alliances were continually maintained with Egypt. When their valour and endurance had given to the Greeks a glorious issue to the war, the articles contained in the final treaty manifest clearly the motives and understandings of both parties. No Persian vessel was to appear between the Cyanean Rocks and Chelidonian Islands; no Persian army to approach within three days' journey of the Mediterranean Sea, B.C. 449. [Sidenote: She becomes the centre of policy and philosophy.]