With regard to his public life, it appears that he served his country faithfully as a soldier, according to the duty of every Athenian citizen. He took part in three campaigns, displaying the greatest hardihood and valor. He endured, without repining, hunger and thirst, heat and cold. In a skirmish with the enemy, his pupil, Alcibiades, fell wounded in the midst of the enemy. Socrates rescued him and carried him off, for which the civic crown was awarded as the prize of valor. This reward, however, he transferred to Alcibiades. In another campaign he saved the life of his pupil, Xenophon, whom he carried from the field on his shoulders, fighting his way as he went.

At the age of sixty-five, he became a member of the council of Five Hundred, at Athens. He rose also to the dignity of president of that body; by virtue of which office, he for one day managed the popular assemblies and kept the key of the citadel and treasury. Ten naval officers had been accused of misconduct, because, after the battle of Arginusæ, they had omitted the sacred duty of burying the slain, in consequence of a violent storm. Their enemies, finding the people disposed to acquit them procured by intrigue, the prorogation of several assemblies. A new assembly was held on the day when Socrates was president; and the citizens, instigated by bad men, violently demanded that sentence of death should be pronounced on all the accused at once, contrary to law. But the menaces of violence were unable to bend the inflexible justice of Socrates, and he was able afterwards to declare, on his own trial, that ten innocent men had been saved by his influence.

When Socrates formed the resolution of devoting himself to the pursuit of divine and human knowledge, the sophists, a set of arrogant philosophers, were perverting the heads and corrupting the hearts of the Grecian youth. He therefore put himself in opposition to these false guides, and went about endeavoring to instruct everybody in a wiser and better philosophy than that which prevailed. He was, in fact, an instructor of the people; and, believing himself an ambassador of God, he was occupied from the dawn of day in seeking persons whom he might teach either what is important to mankind in general, or the private circumstances of individuals. He went to the public assemblies and the most crowded streets, or entered the workshops of mechanics and artists, and conversed with the people on religious duties, on their social and political relations; on all subjects, indeed, relating to morals, and even on agriculture, war, and the arts. He endeavored to remove prevailing prejudices and errors, and to substitute right principles; to awaken their better genius in the minds of his hearers; to encourage and console them; to enlighten and improve mankind, and make them really happy.

It is manifest that such a course must have been attended with great difficulties. But the serenity of Socrates was undisturbed; he was always perfectly cheerful in appearance and conversation. In the market-place and at home, among people and in the society of those whom love of truth and virtue connected more closely with him, he was always the same. It cannot be doubted that a happy physical and mental temperament contributed to produce this equanimity. But it was, likewise, a fruit of self-discipline and the philosophy he taught. He treated his body as a servant, and inured it to every privation, so that moderation was to him an easy virtue; and he retained in old age his youthful vigor, physical and mental. He was kind as a husband and a father. Though his wife, Xantippe, was a noted shrew, he viewed her as an excellent instrument of discipline, and treated her with patience and forbearance.

Although the Greeks at this time were zealously devoted to their heathen mythology, Socrates was a sincere worshipper of the Supreme Being; yet, from his care not to offend his weaker brethren, he observed, with punctilious exactness, the religious uses which antiquity and custom had consecrated. He was constantly attended by a circle of disciples, who caught from him the spirit of free inquiry, and were inspired with his zeal for the highest good, for religion, truth and virtue. The succeeding schools of philosophy in Greece are therefore justly traced back to him; and he is to be regarded as the master who gave philosophical investigation among the Greeks its highest direction. Among his most distinguished disciples were Alcibiades, Crito, Xenophon, Antisthenes, Aristippus, Phædon, Æschines, Cebes, Euclid, and Plato. From the detached accounts given us by Xenophon and Plato, it appears that he instructed them in politics, rhetoric, logic, ethics, arithmetic, and geometry, though not in a systematic manner. He read with them the principal poets, and pointed out their beauties; he labored to enlighten and correct their opinions on all practical subjects, and to excite them to the study of whatever is most important to men.

To make his instructions attractive, they were delivered, not in long lectures, but in free conversations, rendered interesting by question and answer. He did not reason before, but with his disciples, and thus exercised an irresistible power over their minds. He obliged them to think for themselves, and if there was any capacity in a man, it could not fail to be excited by his conversation. This method of question and answer is called the Socratic method. The fragments of his conversations, preserved by Xenophon, often leave us unsatisfied; Plato alone has transmitted to us the genuine spirit of this method; and he was therefore viewed by the ancients as the only fountain of the Socratic philosophy,—a fact which has been too much disregarded by modern writers.

Socrates fell a victim to the spirit of bigotry, which has sacrificed so many persons, who were in advance of the age. The document containing the accusation against him was lodged in the Temple of Cybele, as late as the second century of the Christian era. The following is a translation:—“Melitus, son of Melitus, accuses Socrates, son of Sophroniscus, of being guilty of denying the existence of the gods of the republic, making innovations in the religion of the Greeks, and of corrupting the Athenian youth. Penalty,—death.”

Melitus, who was a tragic writer of a low order, was engaged as an accuser in this affair, by the wealthy and more powerful enemies of Socrates. Amongst them were Anytus and Lycon, the former a rich artisan and zealous democrat, who had rendered very important services to the republic, by aiding Thrasybulus in the expulsion of the thirty tyrants, and in establishing the liberty of his country. The latter was an orator, and therefore a political magistrate, to which office the Athenian orators were entitled, by virtue of the laws of Solon.

Socrates was seventy years of age when summoned to appear at the Areopagus. The news of this event did not excite much surprise, as the people had long expected it. Aristophanes, the celebrated comic poet of Athens, had previously undertaken, at the instigation of Melitus, to ridicule the venerable character of the philosopher; and when once he was calumniated and defamed, the fickle populace ceased to revere the man whom they had before looked upon as a being of a superior order.

The enemies of Socrates were of two classes,—the one consisted of citizens who could not help admiring his genius and virtue, but who regarded him as a dangerous innovator and subverter of public order. They were ready, with him, to acknowledge that some reformation might be made in the tenets of Paganism; that the gods and goddesses were not patterns of virtue; and that the conduct of the sovereign of the skies, himself, was far from exemplary; but, said they, the thunders of Jupiter exercise a salutary influence over the minds of some, and the pains of Tartarus still operate as a bridle upon the passions of others. To bring in question the ancient faith, was at once to attack the institutions of the republic at their base, and excite revolution. The philosophy of Socrates, even though true, must be suppressed; for the life of one man is not to be put in the balance with the repose of a whole people,—with the safety of the country. It is better that Socrates should die, than Athens perish. Such was the reasoning of one portion.