XI. The nobles now perceived that Perikles was the most important man in the State, and far more powerful than any other citizen; wherefore, as they still hoped to check his authority, and not allow him to be omnipotent, they set up Thucydides, of the township of Alopekae, as his rival, a man of good sense, and a relative of Kimon, but less of a warrior and more of a politician, who, by watching his opportunities, and opposing Perikles in debate, soon brought about a balance of power. He did not allow the nobles to mix themselves up with the people in the public assembly, as they had been wont to do, so that their dignity was lost among the masses; but he collected them into a separate body, and by thus concentrating their strength was able to use it to counterbalance that of the other party. From the beginning these two factions had been but imperfectly welded together, because their tendencies were different; but now the struggle for power between Perikles and Thucydides drew a sharp line of demarcation between them, and one was called the party of the Many, the other that of the Few. Perikles now courted the people in every way, constantly arranging public spectacles, festivals, and processions in the city, by which he educated the Athenians to take pleasure in refined amusements; and also he sent out sixty triremes to cruise every year, in which many of the people served for hire for eight months, learning and practising seamanship. Besides this he sent a thousand settlers to the Chersonese, five hundred to Naxos, half as many to Andros, a thousand to dwell among the Thracian tribe of the Bisaltae, and others to the new colony in Italy founded by the city of Sybaris, which was named Thurii. By this means he relieved the state of numerous idle agitators, assisted the necessitous, and overawed the allies of Athens by placing his colonists near them to watch their behaviour.