Cicero on Roman Values and Greek Ethics

In On Ends, Cicero says we are indebted to the Epicureans for philosophy but there are things that they may do which we should not. It's a more interesting kind of critique than one might think just a blustering Roman who thinks Romans are right. And I think sort of as it were the upshot of all this is that there's actually a serious ethical point about whether ethical theories should be universal.