activity to the primordial unity, as inseparably belonging to it.
Theophrastus was a native of Eresus, from whence he migrated to Athens, where he became a follower of Plato, and afterwards of Aristotle, by whom, when he quitted Athens for Chalcis, he was designated as his successor in the presidency of the Lyceum; while in this position, he is said to have had two thousand disciples, and among them the comic poet Menander. When, b.c. 305, the philosophers were banished from Athens, he also left the city, but returned the next year on the repeal of the law. He lived to a great age, though the date of his birth is not certainly known.
He was a very voluminous writer on many subjects, but directed his chief attention to continuing the researches into natural history which had been begun by Aristotle. As, however, only a few fragments of his works have come down to us, and these in a very corrupt state, we know but little what peculiar views he entertained; though we learn from Cicero (De Inv. i. 42—50) that he departed a good deal from the doctrines of Aristotle in his principles of ethics, and also in his metaphysical and theological speculations; and Cicero (De Nat. Deor. i. 13) complains that he did not express himself with precision or with consistency about the Deity; and in other places (Acad. i. 10, Tusc. Quæst. v. 9), that he appeared unable to comprehend a happiness resting merely on virtue; so that he had attributed to virtue a rank very inferior to its deserts.
Xenocrates was a native of Chalcedon, born probably b.c. 396. He was a follower of Plato, and accompanied him to Sicily. After his death, he betook himself, with Aristotle, to the court of Hermias, tyrant of Ptarneus, but soon returned to Athens, and became president of the Academy when Speusippus, through ill health, was forced to abandon that post. He died b.c. 314.
He was not a man of great genius, but of unwearied industry and the purest virtue and integrity. None of his works have come down to us; but, from the notices of other writers, we are acquainted with some of his peculiar doctrines.
