Xenophon, Cyropaedia
Walter Miller, Ed.

[17] The case was like this: a big boy with a little tunic, finding a little boy with a big tunic on, took it off him and put his own tunic on him, while he himself put on the other's. So, when I tried their case, I decided that it was better for them both that each should keep the tunic that fitted him. And thereupon the master flogged me, saying that when I was a judge of a good fit, I should do as I had done; but when it was my duty to decide whose tunic it was, I had this question, he said, to consider—whose title was the rightful one; whether it was right that he who took it away by force should keep it, or that he who had had it made for himself or had bought it should own it. And since, he said, what is lawful is right and what is unlawful is wrong, he bade the judge always render his verdict on the side of the law. It is in this way, mother, you see, that I already have a thorough understanding of justice in all its bearings; and,” he added, “if I do require anything more, my grandfather here will teach me that.”