Thucydides, History of the Peloponnesian War
Benjamin Jowett, Ed.

63. Meanwhile the Chians gained more command of the sea, and Astyochus and the Peloponnesians¹ at Miletus, hearing of the naval engagement and of the withdrawal of Strombichides and his ships, took courage. [2] Sailing to Chios with two ships, Astyochus fetched away the fleet² which was there, and with his united forces made a demonstration against Samos. But the Athenian crews, who were in a state of mutual distrust, did not go out to meet him; so he sailed back to Miletus. [3] For about this time, or rather sooner, the democracy at Athens had been subverted. Peisander³ and his fellow envoys, on their return to Samos after their visit to Tissaphernes, had strengthened their interest in the army, and had even persuaded the chief men of Samos to join them in setting up an oligarchy,⁴ although they had lately risen against their own countrymen⁵ in order to put down oligarchy⁶. [4] At the same time conferring among themselves, the Athenian leaders at Samos came to the conclusion that since Alcibiades would not join they had better leave him alone; for indeed he was not the sort of person who was suited to an oligarchy. But they determined, as they were already compromised, to proceed by themselves, and to take measures for carrying the movement through; they meant also to persevere in the war, and were willing enough to contribute money or anything else which might be wanted out of their own houses, since they would now be toiling, not for others, but for themselves⁷.