Book 1
2.7
and they punish also any one whom they find accusing another falsely. And they bring one another to trial also charged with an offence for which people hate one another most but go to law least, namely, that of ingratitude; and if they know that any one is able to return a favour and fails to do so, they punish him also severely. For they think that the ungrateful are likely to be most neglectful of their duty toward their gods, their parents, their country, and their friends; for it seems that shamelessness goes hand in hand with ingratitude; and it is that, we know, which leads the way to every moral wrong.
