Demosthenes, the father of Demosthenes, was a citizen of good rank and quality, as Theopompus informs us, surnamed the Sword-maker, because he had a large workhouse, and kept servants skilful in that art at work. Demosthenes, when only seven years old, was left by his father in affluent circumstances, the whole value of his estate being little short of fifteen talents, but was wronged by his guardians, part of his fortune being embezzled by them, and the rest neglected; insomuch that even his teachers were defrauded of their salaries. This was the reason that he did not obtain the liberal education that he should have had; besides that on account of weakness and delicate health, his mother would not let him exert himself, and his teachers forebore to urge him. He was meagre and sickly from the first, and hence had the nickname of Batalus, given him, it is said, by the boys, in derision of his appearance; Batalus being a certain enervated flute-player, in ridicule of whom Antiphanes wrote a play.
The first occasion of his eager inclination to oratory, they say, was this. Callistratus, the orator, was to plead in open court for Oropus, and the expectation of the issue of that cause was very great, as well for the ability of the orator, who was then at the height of his reputation, as also for the fame of the action itself. Therefore, Demosthenes, having heard the tutors and schoolmasters agreeing among themselves to be present at this trial, with much importunity persuades his tutor to take him along with him to the hearing; who, having some acquaintance with the doorkeepers, procured a place where the boy might sit unseen, and hear what was said. Callistratus having got the day, and being much admired, the boy began to look upon his glory with emulation, observing how he was courted on all hands, and attended on his way by the multitude; but his wonder was more than all excited by the power of his eloquence, which seemed able to subdue and win over any thing. From this time, therefore, bidding farewell to other sorts of learning and study, he now began to exercise himself, and to take pains in declaiming, as one that meant to be himself also an orator. He made use of Isaeus as his guide to the art of speaking, though Isocrates at that time was giving lessons;whether, as some say, because he was an orphan, and was not able to pay Isocrates his appointed fee of ten minae, or because he preferred Isaeus's speaking, as being more business-like and effective in actual use.
As soon, therefore, as he was grown up to man's estate, he began to go to law with his guardians, and to write orations against them; who, in the meantime, had recourse to various subterfuges and pleas for new trials, and Demosthenes, though he was thus, as Thucydides says, taught his business in dangers, and by his own exertions was successful in his suit, was yet unable for all this to recover so much as a small fraction of his patrimony. He only attained some degree of confidence in speaking, and some competent experience in it. And having got a taste of the honor and power which are acquired by pleadings, he now ventured to come forth, and to undertake public business. And, as it is said of Laomedon, the Orchomenian, that by advice of his physician, he used to run long distances to keep off some disease of his spleen, and by that means having, through labor and exercise, framed the habit of his body, he betook himself to the great garland games, and became one of the best runners at the long race; so it happened to Demosthenes, who, first venturing upon oratory for the recovery of his own private property, by this acquired ability in speaking, and at length, in public business, as it were in the great games, came to have the pre-eminence of all competitors in the assembly.
But when he first addressed himself to the people, he met with great discouragements, and was derided for his strange and uncouth style, which was cumbered with long sentences and tortured with formal arguments to a most harsh and disagreeable excess. Besides, he had, it seems, a weakness in his voice, a perplexed and indistinct utterance and a shortness of breath, which, by breaking and disjointing his sentences, much obscured the sense and meaning of what he spoke. So that in the end, being quite disheartened, he foresook the assembly; and as he was walking carelessly and sauntering about the Piraeus, Eunomus, the Thriasian, then a very old man, seeing him, upbraided him, saying that his diction was very much like that of Pericles, and that he was wanting to himself through cowardice and meanness of spirit, neither bearing up with courage against popular outcry, nor fitting his body for action, but suffering it to languish through mere sloth and negligence.