And yet the motives which we have enumerated are plainly atavistic and pathological. They belong to a mental condition which would conduct an individual to the prison or the gallows. We do not argue seriously whether the career of the highwayman or burglar is legitimate and desirable; and it is impossible to maintain that what is disgraceful for the individual is creditable for the state. And apart from the consideration that predatory patriotism deforms its own idol and makes it hateful in the eyes of the world, subsequent history has fully confirmed the moral instinct of the ancient Greeks, that national insolence or injustice (hybrist) brings its own severe punishment. The imaginary dialogue which Thucydides puts into the mouth of the Athenian and Melian envoys, and the debate in the Athenian Assembly about the punishment of revolted Mitylene, are intended to prepare the reader for the tragic fate of the Sicilian expedition. The same writer describes the break-up of all social morality during the civil war in words which seem to herald the destruction not only of Athens but of Greek freedom. Machiavelli's 'Prince' shows how history can repeat itself, reiterating its lesson that a nation which gives itself to immoral aggrandisement is far on the road to disintegration. Seneca's rebuke to his slave-holding countrymen, 'Can you complain that you have been robbed of the liberty which you have yourselves abolished in your own homes?' applies equally to nations which have enslaved or exploited the inhabitants of subject lands. If the Roman Empire had a long and glorious life, it was because its methods were liberal, by the standard of ancient times. In so far as Rome abused her power, she suffered the doom of all tyrants.