Laches by Plato

Lysimachus, the son of Aristides the Just, and Melesias, the son of the elder Thucydides, two aged men who live together, are desirous of educating their sons in the best manner. Their own education, as often happens with the sons of great men, has been neglected; and they are resolved that their children shall have more care taken of them, than they received themselves at the hands of their fathers.