All, however, used to consider Demades, in the mere use of his natural gifts, an orator impossible to surpass, and that in what he spoke on the sudden, he excelled all the study and preparation of Demosthenes. And Ariston, the Chian, has recorded a judgment which Theophrastus passed upon the orators; for being asked what kind of orator he accounted Demosthenes, he answered, "Worthy of the city of Athens;" and then, what he thought of Demades, he answered, "Above it." And the same philosopher reports, that Polyeuctus, the Sphettian, one of the Athenian politicians about that time, was wont to say that Demosthenes was the greatest orator, but Phocion the ablest, as he expressed the most sense in the fewest words. And, indeed, it is related, that Demosthenes himself, as often as Phocion stood up to plead against him, would say to his acquaintance, "Here comes the knife to my speech." Yet it does not appear whether he had this feeling for his powers of speaking, or for his life and character, and meant to say that one word or nod from a man who was really trusted, would go further than a thousand lengthy periods from others.
Demetrius, the Phalerian, tells us, that he was informed by Demosthenes himself, when old, that the ways he made use of to remedy his natural bodily infirmities and defects were such as these: his inarticulate and stammering pronunciation he overcame and rendered more distinct by speaking with pebbles in his mouth;his voice he disciplined by declaiming and reciting speeches or verses when he was out of breath, while running or going up steep places; and that in his house he had a large looking-glass, before which he would stand and go through his exercises. It is told that some one once came to request his assistance as a pleader, and related how he had been assaulted and beaten. "I am sure," said Demosthenes, "nothing of the kind can have happened to you." Upon which the other, raising his voice, exclaimed loudly, "What, Demosthenes, nothing has been done to me?" "Ah," replied Demosthenes, "now I hear the voice of one that has been injured and beaten." Of so great consequence towards the gaining of belief did he esteem the tone and action of the speaker. When a thief, who had the nickname of the Brazen, was attempting to upbraid him for sitting up late, and writing by candlelight, "I know very well," said he, "that you had rather have all lights out; and wonder not, O ye men of Athens, at the many robberies which are committed, since we have thieves of brass and walls of clay."His first entering into public business was about the time of the Phocian war. But the object which he chose for himself in the commonwealth was noble and just, the defence of the Greek against Philip; and in this he behaved himself so worthily that he soon grew famous, and excited attention everywhere for his eloquence and courage in speaking. He was admired through all Greece, the king of Persia courted him, and by Philip himself he was more esteemed than all the other orators. His very enemies were forced to confess that they had to do with a man of mark; for such a character even Aeschines and Hyperides give him, where they accuse and speak against him.
Demosthenes would never turn aside or prevaricate, either in word or deed. Panaetius, the philosopher, said, that most of his orations were written, as if they were to prove this one conclusion: that only what is honest and virtuous is to be chosen;as that of the Crown, that against Aristocrates, that for the Immunities, and the Philippics; in all which he persuades his fellow-citizens to pursue not that which seems most pleasant, easy, or profitable; but declares over and over again, that they ought in the first place to prefer that which is just and honorable, before their own safety and preservation.
Excepting only Phocion, he far surpassed, even in his life and manners, the other orators of his time. None of them addressed the people so boldly; he attacked the faults, and opposed himself to the unreasonable desires of the multitude, as may be seen in his orations. Theopompus writes, that the Athenians having by name selected Demosthenes, and called upon him to accuse a certain person, he refused to do it; upon which the assembly being all in an uproar, he rose up and said, "Your counselor, whether you will or no, O ye men of Athens, you shall always have me; but a sycophant or false accuser, I shall never be." And his conduct in the case of Antiphon was perfectly aristocratical; whom, after he had been acquitted in the assembly, he took and brought before the court of Areopagus, and, setting at naught the displeasure of the people, convicted him there of having promised Philip to burn the arsenal; whereupon the man was condemned by that court, and suffered for it. He accused, also, Theoris, the priestess, among other misdemeanors, of having instructed and taught the slaves to deceive and cheat their masters, for which the sentence of death was passed upon her, and she was executed.