Plato was born at Athens, in May, 429 B. C. He was the son of Ariston and Perectonia. His original name was Aristocles, and it has been conjectured that he received that of Plato, from the largeness of his shoulders: this, however, is improbable, as Plato was then a common name at Athens. Being one of the descendants of Codrus, and the offspring of a noble, illustrious, and opulent family, he was educated with the utmost care; his body was formed and invigorated with gymnastic exercises, and his mind was cultivated and trained by the study of poetry and of geometry; from which two sources he doubtless derived that acuteness of judgment and warmth of imagination, which stamped him as at once the most subtle and flowery writer of antiquity. He first began his literary career by writing poems and tragedies; but he was disgusted with his own productions, when, at the age of twenty, he was introduced into the society of Socrates, and was qualified to examine, with critical accuracy, the merit of his compositions, and compare them with those of his poetical predecessors. He, therefore, committed them to the flames. During eight years he continued to be one of the pupils of Socrates; and though he was prevented by indisposition from attending the philosopher’s last moments, he collected, from the conversation of those that were present, and from his own accurate observations, very minute and circumstantial accounts, which exhibit the concern and sensibility of the pupil, and the firmness, virtue, and elevated moral sentiments of the dying philosopher. After the death of Socrates Plato retired from Athens, and, with a view to emerge his stores of knowledge, he began to travel over different countries. He visited Megara, Thebes, and Elis, where he met with the kindest reception from his fellow-disciples, whom the violent death of their master had likewise removed from Attica. He afterwards visited Magna Græcia, attracted by the fame of the Pythagorean philosophy, and by the learning, abilities, and reputation of its professors, Philolaus, Archytas, and Eurytus. He then passed into Sicily, and examined the eruptions of Etna. He visited Egypt, where the mathematician Theodorus, then flourished, and where he knew that the tenets of the Pythagorean philosophy had been fostered.