History of the Peloponnesian War

At the same time arrived in haste from Lacedaemon an embassy consisting of persons reputed well disposed towards the Athenians—Philocharidas, Leon, and Endius, for fear that the Athenians in their irritation might conclude alliance with the Argives, and also to ask back Pylos in exchange for Panactum, and in defence of the alliance with the Boeotians to plead that it had not been made to hurt the Athenians.

Upon the envoys speaking in the senate upon these points, and stating that they had come with full powers to settle all others at issue between them, Alcibiades became afraid that if they were to repeat these statements to the popular assembly, they might gain the multitude, and the Argive alliance might be rejected,

and accordingly had recourse to the following stratagem. He persuaded the Lacedaemonians by a solemn assurance that if they would say nothing of their full powers in the assembly, he would give back Pylos to them (himself, the present opponent of its restitution, engaging to obtain this from the Athenians), and would settle the other points at issue.

His plan was to detach them from Nicias and to disgrace them before the people, as being without sincerity in their intentions, or even common consistency in their language, and so to get the Argives, Eleans, and Mantineans taken into alliance.