Are you a Greek or a Roman?

In Aubrey de Selincourt's introduction to Livy's History of Early Rome, he lists the Roman virtues as fair-dealing, integrity, the fear of God, political competence and devoted patriotism. Regarding political competence, he contrasts the Romans to the Greeks who he says "thought of everything but accomplished nothing." I've read the first three out of five books of Livy's history, and so far the Romans have had kings, dictators, decemvirs, consuls, tribunes and, through it all, the Senate. The government was never perfect, and kept changing its form, but it did last hundreds of years. I suppose this is what de Selincourt means by "political competence". This makes me wonder, "Am I a thoughtful Greek or a competent Roman?" Which are you?