History of the Peloponnesian War

The breach between the Lacedaemonians and Athenians having gone thus far, the party at Athens, also, who wished to cancel the treaty, immediately put themselves in motion.

Foremost amongst these was Alcibiades, son of Clinias, a man yet young in years for any other Hellenic city, but distinguished by the splendor of his ancestry. Alcibiades thought the Argive alliance really preferable, not that personal pique had not also a great deal to do with his opposition; he being offended with the Lacedaemonians for having negotiated the treaty through Nicias and Laches, and having overlooked him on account of his youth, and also for not having shown him the respect due to the ancient connection of his family with them as their Proxeni, which, renounced by his grandfather, he had lately himself thought to renew by his attentions to their prisoners taken in the island.