History of the Peloponnesian War

The majority therefore, through fear, were eager to conclude the alliance with the Argives on their own part, respectively, as the Mantineans had done.

When the Lacedaemonians perceived this commotion which had arisen in the Peloponnese, and that the Corinthians were the advisers of it, and were themselves about to enter into treaty with Argos, they sent ambassadors to Corinth, wishing to prevent what was going to happen. They charged them therefore with suggesting the whole business; and said that if they withdrew from them, and became allies of the Argives, they would violate their oaths; and that they were already doing wrong in not accepting the treaty with the Athenians, when it had been declared, that whatever the majority of the allies decreed, should be binding, unless there were some impediment on the part of gods or heroes.

The Corinthians, in the presence of all the allies who, like themselves, had not acceded to the treaty, (for they had themselves previously invited them thither,) spoke in reply to the Lacedaemonians; not indeed directly stating the injuries they had received, namely, that they had not recovered Sollium from the Athenians, nor Anactorium—with any other point on which they considered themselves to be aggrieved; but urging as a pretext their determination not to betray the Thrace-ward Greeks; for they had taken oaths to them, both by themselves, when in the first instance they revolted, in concert with the Potidaeans, and others afterwards.