Antisthenes of Athens | Plutarch, Life of Lycurgus 30

<blockquote>To this position of Sparta Stratonicus would seem to have mockingly alluded when, in jest, he proposed a law that the Athenians should conduct mysteries and processions, and that the Eleians should preside at games, since herein lay their special excellence, but that the Lacedaemonians should be cudgelled if the others did amiss. This was a joke; but Antisthenes the Socratic, when he saw the Thebans in high feather after the battle of Leuctra, said in all seriousness that they were just like little boys strutting about because they had thrashed their tutor.

Source: The Parallel Lives by Plutarch published in Vol. I of the Loeb Classical Library edition, 1914.
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