Such was the process by which he became confessedly the greatest orator among the people by whom eloquence was cultivated, as it has never been since by any nation upon earth. He brought it to its highest state of perfection, as did Sophocles the tragic drama, by the harmonious union of excellences which had before only existed apart. The quality in his writings which excited the highest admiration of the most intelligent critics among his countrymen, in the later critical age, was the Protean versatility with which he adapted his style to every theme, so as to furnish the most perfect examples of every order and kind of eloquence.

Demosthenes, like Pericles, never willingly appeared before his audience with any but the ripest fruits of his private studies, though he was quite capable of speaking on the impulse of the moment in a manner worthy of his reputation. He continued to the end of his career to cultivate the art with unabated diligence, and even in the midst of public business, his habits were known to be those of a severe student.

The first manifestation of that just jealousy of Philip, the ambitious king of Macedon, which became the leading principle of his life, was made B. C. 352, when the orator delivered the first of those celebrated speeches called Philippics. The word has been naturalized in Latin and most European languages, as a concise term to signify indignant invective.

From this time forward, it was the main object of Demosthenes to inspire and keep alive in the minds of the Athenians a constant jealousy of Philip’s power and intentions, and to unite the other states of Greece in confederacy against him. The policy and the disinterestedness of his conduct have both been questioned; the former, by those who have judged, from the event, that resistance to the power of Macedonia was rashly to accelerate a certain and inevitable evil; the latter, by those, both of his contemporaries and among posterity, who believe that he received bribes from Persia, as the price of finding employment in Greece for an enemy, whose ambition threatened the monarch of the East. With respect to the former, however, it was at least the most generous policy, and that of the elder Athenians in their most illustrious days, not to await the ruin of their independence submissively, until every means had been tried for averting it; for the latter, such charges are hard either to be proved or refuted. The character of Demosthenes certainly does not stand above the suspicion of pecuniary corruption, but it has not been shown, nor is it necessary or probable to suppose, that his jealousy of Philip of Macedon was not in the first instance far-sighted and patriotic. During fourteen years, from 352 to 338, he exhausted every resource of eloquence and diplomatic skill to check the progress of that aspiring monarch; and whatever may be thought of his moral worth, none can undervalue the genius and energy, which have made his name illustrious, and raised a memorial of him far more enduring than sepulchral brass.

In 339, B. C., Philip’s appointment to be general of the Amphyctionic League gave him a more direct influence than he had yet possessed; and in the same year, the decisive victory of Cheronea, won over the combined forces of Thebes, Athens, &c., made him master of Greece. Demosthenes served in this engagement, but joined early in the flight, with circumstances, according to report, of marked cowardice and disgrace. He retired for a time from Athens, but the cloud upon his character was but transient; for shortly after he was entrusted with the charge of putting the city in a state of defence, and was appointed to pronounce the funeral oration over those who had been slain. After the battle of Cheronea, Philip, contrary to expectation, did not prosecute hostilities against Athens; on the contrary, he used his best endeavors to conciliate the affections of the people, but without success; the party hostile to Macedon soon regained the superiority, and Demosthenes was proceeding with his usual vigor in the prosecution of his political schemes, when news arrived of the murder of Philip, in July, 336.

The daughter of Demosthenes had then lately died; nevertheless, in violation of national usage, he put off his mourning, and appeared in public crowned with flowers, and with other tokens of festive rejoicing. This act, a strong expression of triumph over the fall of a most dangerous enemy, has been censured with needless asperity; the accusation of having been privy to the plot for Philip’s murder beforehand, founded on his own declaration of the event some time before intelligence of it came from any other quarter, and the manifest falsehood as to the source of the information, which he professed to derive from a divine revelation, involves, if it be judged to be well founded, a far blacker imputation.

Whether or not it were of his own procuring, the death of Philip was hailed by Demosthenes as an event most fortunate for Athens, and favorable to the liberty of Greece. Thinking lightly of the young successor to the Macedonian crown, he busied himself the more in stirring up opposition to Alexander, and succeeded in urging Thebes into that revolt, which ended in the entire destruction of the city, B. C. 335. This example, as it well might, struck terror into Athens. Alexander demanded that Demosthenes, with nine others, should be given up into his hands, as the authors of the battle of Cheronea, and of the succeeding troubles of Greece; but finally contented himself with requiring the banishment of Charidemus alone.

Opposition to Macedon was now effectually put down, and until the death of Alexander we hear little more of Demosthenes as a public man. During this period, however, one of the most memorable incidents of his life occurred in that contest of oratory with Æschines, which has been more celebrated than any strife of words since the world began. The origin of it was as follows. About the time of the battle of Cheronea, one Ctesiphon brought before the people a decree for presenting Demosthenes with a crown for his distinguished services; a complimentary motion, in its nature and effects very much like a vote of parliament declaratory of confidence in the administration. Æschines, the leading orator of the opposite party, arraigned this motion, as being both untrue in substance and irregular in form; he indicted Ctesiphon on these grounds, and laid the penalty at fifty talents, equivalent to about $45,000. Why the prosecution was no long delayed, does not clearly appear; but it was not brought to an issue until the year 330, when Æschines pronounced his great oration “against Ctesiphon.” Demosthenes defended him in the still more celebrated speech “on the crown.” These, besides being the most admirable specimens of rhetorical art, have the additional value, that the rival orators, being much more anxious to uphold the merits of their own past policy and conduct, than to convict or defend the nominal object of prosecution, have gone largely into matters of self-defence and mutual recrimination, from which much of our knowledge of this obscure portion of history is derived. Æschines lost the cause, and not having the votes of so much as a fifth part of the judges, became liable, according to the laws of Athens, to fine and banishment. He withdrew to Rhodes, where he established a school of rhetoric.

Demosthenes roused the Athenians against Antipater the successor of Alexander in Greece, but when that general triumphed, he fled to Calmesia, and took refuge in a temple. He retired into the inner part of the building, on pretence of writing a letter, where he took poison and speedily died.

Such was the life of Demosthenes, the greatest orator Greece ever produced, and one of the most famous that ever lived.