Parmenides, a native of Elea, who flourished about the year 503 B.C., enjoyed a reputation in his native city scarcely inferior to that of Pythagoras at Crotona, of Empedocles at Acragas, or of Solon at Athens. Speusippus, quoted by Diogenes Laertius, asserts that the magistrates of Elea were yearly sworn to observe the laws enacted by Parmenides. Cebes talks about a "Pythagorean or Parmenidean mode of life," as if the austere ascesis of the Samian philosopher had been adopted or imitated by the Eleatic. Indeed, there is good reason to suppose that Parmenides held intercourse with members of the Pythagorean sect, his neighbors in the south of Italy. Diogenes Laertius relates that he was united in the bonds of closest friendship to Ameinias and Diochætes, two Pythagoreans. Of these the latter was a poor man, but excellent in breeding and in character; Parmenides so loved him and respected him that, when he died, he dedicated a hero's chapel to his memory. The philosophers of this period in Greece, as might be proved abundantly, were no mere students but men of action and political importance. Their reputation for superior wisdom caused them to be consulted in affairs of state, and to be deferred to in matters of constitutional legislation. Some of them, like Thales, Anaximander, and Empedocles, were employed on works of public utility. Others, like Pythagoras, remodelled the society of cities, or, like Anaxagoras, through their influence with public men like Pericles, raised the tone of politics around them. All of them devoted a large portion of their time and attention to the study of public questions. It was this kind of prestige, we may conjecture, which, in the next phase of Greek thought, threw so much power into the hands of sophists, and which finally encouraged Plato in his theory that those states would be best governed where the sages were the rulers. Of Parmenides himself some precious notices have been preserved by Plato. It appears that the great Eleatic teacher visited Athens in his old age. Socrates was a young man at the period of this visit; and Plato, whether inventing an occasion for their meeting or relying on actual tradition, brings them into conversation. In the prelude to the dialogue _Parmenides_, we read:[45]