From "Xenophon the Athenian was born 431 B.C. He was a pupil of Socrates. He marched with the Spartans, and was exiled from Athens. Sparta gave him land and property in Scillus, where he lived for many years before having to move once more, to settle in Corinth. He died in 354 B.C. The Agesilaus summarises the life of his Spartan friend and king, whom he met after the events of the Anabasis. To write the praises of Agesilaus in language equalling his virtue and renown is, I know, no easy task; yet must it be essayed; since it were but an ill requital of pre-eminence, that, on the ground of his perfection, a good man should forfeit the tribute even of imperfect praise. As touching, therefore, the excellency of his birth, what weightier, what nobler testimony can be adduced than this one fact? To the commemorative list of famous ancestry is added to-day the name (1) Agesilaus as holding this or that numerical descent from Heracles, and these ancestors no private persons, but kings sprung from the loins of kings. Nor is it open to the gainsayer to contend that they were kings indeed but of some chance city. Not so, but even as their family holds highest honour in their fatherland, so too is their city the most glorious in Hellas, whereby they hold, not primacy over the second best, but among leaders they have leadership."
Xenophon (Ancient Greek Ξενοφῶν, Modern Greek Ξενοφώντας; ca. 431 – 355 BC), son of Gryllus, of the deme Erchia of Athens, was a soldier, mercenary and a contemporary and admirer of Socrates. He is known for his writings on the history of his own times, preserving the sayings of Socrates, and the life of ancient Greece.
Historical and biographical works: Anabasis (or The Persian Expedition) Cyropaedia Hellenica Agesilaus
Socratic works and dialogues: Memorabilia Oeconomicus Symposium Apology Hiero
Short treatises: On Horsemanship The Cavalry General Hunting with Dogs Ways and Means Constitution of Sparta