History of the Peloponnesian War

When Pausanias received this letter, although even before this he had been held in high consideration by the Hellenes because he had led them at Plataea, he was then far more elated and could no longer bring himself to live in the usual manner of his people, but clad himself in Persian apparel whenever he went forth from Byzantium, and when he travelled through Thrace a body-guard of Medes and Egyptians attended him; he had his table served in Persian style, and indeed could not conceal his real purpose, but by such trifling acts showed plainly what greater designs he purposed in his heart to accomplish thereafter.

And so he made himself difficult of access, and indulged in such a violent temper towards everybody that no one could come near him; and this was one of the chief reasons why the allies went over to the Athenians.