The fame of it also reached even to the court of Persia, and the king sent letters to his lieutenants commanding them to supply Demosthenes with money, and to pay every attention to him, as the only man of all the Grecians who was able to give Philip occupation and find employment for his forces near home, in the troubles of Greece. This, afterwards came to the knowledge of Alexander, by certain letters of Demosthenes which he found at Sardis, and by other papers of the Persian officers, stating the large sums which had been given him.
[Plutarch's Life of Demosthenis,20,4-5]
.It was not long after that Harpalus fled from Alexander, and came to Athens out of Asia; knowing himself guilty of many misdeeds into which his love of luxury had led him, and fearing the king, who was now grown terrible even to his best friends. Yet this man had no sooner addressed himself to the people, and delivered up his goods, his ships, and himself to their disposal, but the other orators of the town had their eyes quickly fixed upon his money, and came in to his assistance, persuading the Athenians to receive and protect their suppliant. Demosthenes at first gave advice to chase him out of the country, and to beware lest they involved their city in a war upon an unnecessary and unjust occasion. But some few days after, as they were taking an account of the treasure, Harpalus, perceiving how much he was pleased with a cup of Persian manufacture, and how curiously he surveyed the sculpture and fashion of it, desired him to poise it in his hand, and consider the weight of the gold. Demosthenes, being amazed to feel how heavy it was, asked him what weight it came to. "To you," said Harpalus, smiling, "it shall come with twenty talents." And presently after, when night drew on, he sent him the cup with so many talents. Harpalus, it seems, was a person of singular skill to discern a man's covetousness by the air of his countenance, and the look and movements of his eyes. For Demosthenes could not resist the temptation, but admitting the present, like an armed garrison, into the citadel of his house, he surrendered himself up to the interest of Harpalus. The next day, he came into the assembly with his neck swathed about with wool and rollers, and when they called on him to rise up and speak, he made signs as if he had lost his voice. But the wits, turning the matter to ridicule, said that certainly the orator had been seized that night with no other than a silver quinsy. And soon after, the people, becoming aware of the bribery, grew angry, and would not suffer him to speak, or make any apology for himself, but ran him down with noise; and one man stood up, and cried out, "What, ye men of Athens, will you not hear the cup-bearer?" So at length they banished Harpalus out of the city; and fearing lest they should be called to account for the treasure which the orators had purloined, they made a strict inquiry, going from house to house; only Callicles, the son of Arrhenidas, who was newly married, they would not suffer to be searched, out of respects, as Theopompus writes, to the bride, who was within.
. Demosthenes resisted the inquisition, and proposed a decree to refer the business to the court of Areopagus, and to punish those whom that court should find guilty. But being himself one of the first whom the court condemned, when he came to the bar, he was fined fifty talents, and committed to prison; where, out of shame of the crime for which he was condemned, and through the weakness of his body, growing incapable of supporting the confinement, he made his escape, by the carelessness of some and by the contrivance of others of the citizens. We are told, at least, that he had not fled far from the city when, finding that he was pursued by some of those who had been his adversaries, he endeavoured to hide himself. But when they called him by his name, and coming up nearer to him, desired he would accept from them some money which they had brought from home as a provision for his journey, and to that purpose only had followed him, when they entreated him to take courage, and to bear up against his misfortune, he burst out into much greater lamentation, saying, "But how is it possible to support myself under so heavy an affliction, since I leave a city in which I have such enemies, as in any other it is not easy to find friends." He did not show much fortitude in his banishment, spending his time for the most part in Aegina and Troezen, and, with tears in his eyes, looking towards the country of Attica. And there remain upon record some sayings of his, little resembling those sentiments of generosity and bravery which he used to express when he had the management of the commonwealth. For, as he was departing out of the city, it is reported, he lifted up his hands towards the Acropolis, and said, "O Lady Minerva, how is it that thou takest delight in three such fierce untractable beasts, the owl, the snake, and the people?" The young men that came to visit and converse with him, he deterred from meddling with state affairs, telling them, that if at first two ways had been proposed to him, the one leading to the speaker's stand and the assembly, the other going direct to destruction, and he could have foreseen the many evils which attend those who deal in public business, such as fears, envies, calumnies, and contentions, he would certainly have taken that which led straight on to his death.