History of the Peloponnesian War

"The articles of this league and peace and the oath shall be inscribed in a pillar of stone by the Athenians in the citadel; by the Argives in their market place within the precincts of the temple of Apollo; and by the Mantineans in their market place within the precinct of the temple of Jupiter. And at the Olympian games now at hand, there shall be jointly erected by them all a brazen pillar in Olympia [with the same inscription].

If it shall seem good to any of these cities to add anything to these articles, whatsoever shall be determined by them all in common council, the same shall stand good.

Thus was the league and the peace concluded; and that which was made before between the Lacedaemonians and the Athenians was, notwithstanding, by neither side renounced.

But the Corinthians, although they were the confederates of the Argives, yet would they not enter into this league; nay, though there were made a league before this between [them and] the Argives, Eleians, and Mantineans that where one there all should have war or peace, yet they refused to swear to it, but said that their league defensive was enough, whereby they were bound to defend each other but not to take part one with another in invading.

So the Corinthians fell off from their confederates and inclined again to the Lacedaemonians.