http://classics.mit.edu/Thucydides/pelopwar.3.third.html"I have often before now been convinced that a democracy is incapable of empire, and never more so than by your present change of mind in the matter of Mitylene. Fears or plots being unknown to you in your daily relations with each other, you feel just the same with regard to your allies, ... whose obedience is ensured not by your suicidal concessions, but by the superiority given you by your own strength, and not their loyalty.
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"I proceed to show that no one state has ever injured you as much as Mitylene. I can make allowance for those who revolt because they cannot bear our empire, or who have been forced to do so by the enemy. But for those who possessed an island with fortifications; who could fear our enemies only by sea, and there had their own force of galleys to protect them; who were independent and held in the highest honour by you - to act as these have done, this is not revolt - revolt implies oppression; it is deliberate and wanton aggression; an attempt to ruin us by siding with our bitterest enemies; a worse offence than a war undertaken on their own account in the acquisition of power.
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Consider therefore: if you subject to the same punishment the ally who is forced to rebel by the enemy, and him who does so by his own free choice, which of them, think you, is there that will not rebel upon the slightest pretext; when the reward of success is freedom, and the penalty of failure nothing so very terrible? ... Their offence was not involuntary, but of malice and deliberate; and mercy is only for unwilling offenders. I therefore, now as before, persist against your reversing your first decision, or giving way to the three failings most fatal to empire - pity, sentiment, and indulgence. Compassion is due to those who can reciprocate the feeling, not to those who will never pity us in return, but are our natural and necessary foes:
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To sum up shortly, I say that if you follow my advice you will do what is just towards the Mitylenians, and at the same time expedient; ... For if they were right in rebelling, you must be wrong in ruling. However, if, right or wrong, you determine to rule, you must carry out your principle and punish the Mitylenians as your interest requires; or else you must give up your empire and cultivate honesty without danger.