The profession of sophist had not long flourished, and no Athenian had acquired fame in any branch of philosophy, when the singular talents, and singular manners and pursuits, of Socrates, son of Sophroniscus, engaged public attention. The father was a statuary, and is not mentioned as very eminent in his profession; but, as a man, he seems to have been respected among the most eminent of the commonwealth: he lived in particular intimacy with Lysimachus, son of the great Aristides. Socrates, inheriting a very scanty fortune, had a mind wholly intent upon the acquisition and communication of knowledge. The sublime principles of theology, taught by Anaxagoras, made an early impression upon his mind. They led him to consider what should be the duty owed by man to such a Being as Anaxagoras described his Creator; and it struck him that, if the providence of God interfered in the government of this world, the duty of man to man, little considered by poets or priests as any way connected with religion, and hitherto almost totally neglected by philosophers, must be a principal branch of the duty of man to God. It struck him further that, with the gross defects which he saw in the religion, the morality, and the governments of Greece, though the favourite inquiries of the philosophers, concerning the nature of the Deity, the formation of the world, the laws of the heavenly bodies, might, while they amused, perhaps also enlarge and improve the minds of a few speculative men, yet the investigation of the social duties was infinitely more important, and might be infinitely more useful, to mankind in general. Endowed by nature with a most discriminating mind, and a singularly ready eloquence, he directed his utmost attention to that investigation; and when, by reflection, assisted and proved by conversation among the sophists and other able men, he had decided an opinion, he communicated it, not in the way of precept, which the fate of Anaxagoras had shown hazardous, but by proposing a question, and, in the course of interrogatory argument, leading his hearers to the just conclusion.
We are informed by his disciple Xenophon how he passed his time. He was always in public. Early in the morning he went to the walks and the gymnasia: when the agora filled, he was there; and, in the afternoon, wherever he could find most company. Generally he was the principal speaker. The liveliness of his manner made his conversation amusing as well as instructive, and he denied its advantages to nobody. But he was nevertheless a most patient hearer; and preferred being the hearer whenever others were present able and disposed to give valuable information to the company. He did not commonly refuse invitations, frequently received, to private entertainments; but he would undertake no private instruction, nor could any solicitation induce him to relieve his poverty by accepting, like the sophists and rhetoricians, a reward for what he gave in public.