In all the vicissitudes of public affairs, the constancy he showed was admirable, not being elated with honors, and demeaning himself sedately in adversity. Once, at the recital of these verses of Aeshcylus in the theatre, relating to Amphiaraus,
For not at seeming just, but being so
He aims; and from his depth of soil below,
Harvest of wise and prudent counsels grow,
the eyes of all the spectators were turned upon Aristides, as if this virtue in an especial manner belonged to him.
He was a most determined champion of justice, not only against feelings of friendship and favor, but wrath and malice.
Thus it is reported of him that prosecuting one who was his enemy, when the judges after accusation refused to hear the criminal, and were proceeding immediately to pass sentence upon him, he rose in haste from his seat and joined in petition with him for a hearing, and that he might enjoy the privilege of the law. Another time, judging between two private persons, when the one declared his adversary had very much injured Aristides; "Tell me rather, good friend," he said, "what wrong he has done you: for it is your cause, not my own, which I now sit judge of." Being chosen to the charge of the public revenue, he made it appear, that not only those of his time, but the preceding officers, had alienated much treasure, and especially Themistocles:
Well known he was an able man to be,
But with his fingers apt to be too free.
Therefore, Themistocles associating several persons against Aristides, and impeaching him when he gave in his accounts, caused him to be condemned of robbing of the public; so Idomeneus states; but the best and chief men of the city much resented it, so that he was not only exempted from the fine imposed upon him, but again called to the same employment. Pretending now to repent of his former practice, and carrying himself with more remissness, he became acceptable to such as pillaged the treasury, by not detecting or calling them to an exact account. So that those who had their fill of the public money began highly to applaud Aristides, and sued to the people, to have him once more chosen treasurer. But when they were upon the point of election, he reproved the Athenians in these words: "When I discharged my office well and faithfully, I was insulted and abused; but now that I have countenanced the public thieves in a variety of malpractices, I am considered an admirable patriot. I am more ashamed, therefore, of this present honor than of the former sentence; and I pity your condition, with whom is more praiseworthy to oblige bad men than to preserve the revenue of public."
When Datis was sent by Darius under pretense of punishing the Athenians for their burning of Sardis, but in reality to reduce the Greeks under his dominion, and had landed at Marathon and laid waste the country, among the ten commanders appointed by the Athenians for the war, Miltiades was of the greatest name; but the second place, both for reputation and power, was possessed by Aristides: and when his opinion to join battle was added to that of Miltiades, it did much to incline the balance. Every leader by his day having the command in chief, when it came to Aristides' turn, he delivered it into the hands of Miltiades, showing his fellow officers, that it is not dishonorable to obey and follow wise and able men, but, on the contrary, noble and prudent. So appeasing their rivalry, and bringing them to acquiesce in the best advice, he confirmed Miltiades in the strength of undivided and unmolested authority. And now every one, yielding his day of command, looked for orders only to him. During the fight the main body of the Athenians being the hardest pressed, the barbarians, for a long time, making opposition there against the tribes Leontis and Antiochis, Themistocles and Aristides being ranged together, fought valiantly; the one being of the tribe Leontis, the other of the Antiochis. But, after they had beaten the barbarians back to their ships, and perceived that they did sail for the isles, but were driven in by the force of sea and wind towards the country of Attica, fearing lest they should take the city, they hurried away thither with nine tribes, and reached it the same day.
Of all the virtues of Aristides, the common people were most affected with his justice, because of its continual and common use; and thus, although of mean fortune and ordinary birth, he possessed himself of the most kingly and divine appellation of Just; which kings, however, and tyrants have never sought after; but have taken delight to be surnamed besiegers of cities, thunderers, conquerors, eagles and hawks; affecting, it seems, the reputation which proceeds from power and violence, rather than that of virtue.
Aristides, therefore, had at first the fortune to be beloved for this surname, but at length envied. Especially when Themistocles spread a rumor amongst the people, that, by determining and judging all matters privately, he had destroyed the courts of judicature, and was secretly making way for a monarchy in his own person, without the assistance of guards. Moreover, the spirit of the people, now grown high, and confident with their late victory, naturally entertained feelings of dislike to all of more than common fame and reputation. Coming together, therefore, from all parts into the city, they banished Aristides by the ostracism, giving their jealousy of his reputation the name of fear of tyranny. For ostracism was not the punishment of any criminal act, but was speciously said to be the mere depression and humiliation of excessive greatness and power; and was in fact a gentle relief and mitigation of envious feeling, which was thus allowed to vent itself in inflicting no intolerable injury, only a ten years' banishment. But after it came be exercised upon base and villainous fellows, they desisted from it; Hyperbolus, being the last whom they banished by the ostracism.