large majority of the people at the _beginning_ of a war. Pugnacity,
greed, mere excitement, the contagion of a crowd, will fill the streets
of almost any capital with a shouting and jubilant mob on the day after
a war has been declared.

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.