History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
The Corcyraeans, on the other hand, were alarmed when they learned of their preparations, and since they were without an ally among the Hellenes and had not enrolled themselves in the alliance either of the Athenians or of the Lacedaemonians, they decided to go to the Athenians, become their allies, and try to procure some aid from them.
But the Corinthians also, hearing of this, themselves sent envoys to Athens to prevent the accession of the Athenian fleet to that of the Corcyraeans, as this would hamper them in settling the war as they wished.
And when an assembly Q38. was held opposing speeches were made, and the Corcyraeans spoke as follows:
"It is but fair, citizens of Athens, that those who, without any previous claim on the score of important service rendered or of an existing alliance, come to their neighbours to ask aid, as we do now, should show in the first place, if possible, that what they ask is advantageous, or at least that it is not hurtful, and, in the second place, that their gratitude can be depended on; but in case they establish neither of these things clearly, they should not be angry if unsuccessful.
Now the Corcyraeans have sent us to ask for an alliance, and in full confidence that they will be able to give you guarantees on just these points.