History of the Peloponnesian War

Now Aristeus, when it was surrounded with works, and he had no hope of its escape, unless some movement from the Peloponnese, or something else beyond their calculation, should occur, advised all, except five hundred, to watch for a wind and sail out of it, that their provisions might hold out the longer; and he was willing himself to be one of those who remained. But when he did not persuade them, from a wish to provide what was the next best thing to be done, and in order that affairs out of the place might proceed in the best way possible, he sailed out, without being observed by the guard-ships of the Athenians.

And remaining amongst the Chalcidians, he joined in the other measures of the war; and laid an ambuscade near the city of the Sermylians, and cut off many of them; and sending to the Peloponnese, [*]( The original is a condensed expression, the participle πέμπων being understood, as is evident from chap. 57. 3, where it is expressed, δεδιώς τε ἔπρασσεν ἔς τε τὴν λακεδαίμονα πέμπων ὅπως, κ. τ. λ.) endeavoured to contrive a way in which some assistance might be brought. After the works round Potidaea were finished, Phormio with his sixteen hundred men proceeded to ravage Chalcidice and Bottice, and took some of the towns also.

The Athenians then and Peloponnesians had had these previous grounds of complaint against each other; the Corinthians, because Potidaea, which was a colony of their own, and men of Corinth and from the Peloponnese in it, were being besieged; the Athenians against the Peloponnesians, because they had caused the revolt of a city which was their ally and tributary, and had come and openly fought with them in conjunction with the Potidaeans. The war however had not yet positively broken out, but at present there was a suspension of hostilities; for the Corinthians had done these things on their own responsibility alone.