=Apollonius=, a Stoic philosopher of Chalcis, sent for by Antoninus Pius, to instruct his adopted son Marcus Antoninus. When he came to Rome, he refused to go to the palace, observing that the master ought not to wait upon his pupil, but the pupil upon him. The emperor hearing this, said, laughing, “It was then easier for Apollonius to come from Chalcis to Rome, than from Rome to the palace.”――――A geometrician of Perge in Pamphylia, whose works are now lost. He lived about 240 years before the christian era, and composed a commentary on Euclid, whose pupils he attended at Alexandria. He wrote treatises on conic sections, eight of which are now extant; and he first endeavoured to explain the causes of the apparent stopping and retrograde motion of the planets, by cycles and epicycles, or circles within circles. The best edition of Apollonius is Dr. Halley’s, Oxford, folio, 1710.――――A poet of Naucratis in Egypt, generally called Apollonius of _Rhodes_, because he lived for some time there. He was pupil, when young, to Callimachus and Panætius, and succeeded to Eratosthenes as third librarian of the famous library of Alexandria, under Ptolemy Evergetes. He was ungrateful to his master Callimachus, who wrote a poem against him, in which he denominated him _Ibis_. Of all his works, nothing remains but his poem on the expedition of the Argonauts, in four books. The best editions of Apollonius are those printed at Oxford, in 4to, by Shaw, 1777, 2 vols.; and in 1 vol., 8vo, 1779; and that of Brunck, Strasbourg, 12mo, 1780. _Quintilian_, bk. 10, ch. 1.――――A Greek orator, surnamed Molo, was a native of Alabanda in Caria. He opened a school of rhetoric at Rhodes and Rome, and had Julius Cæsar and Cicero among his pupils. He discouraged the attendance of those whom he supposed incapable of distinguishing themselves as orators, and he recommended to them pursuits more congenial to their abilities. He wrote a history, in which he did not candidly treat the people of Judæa, according to the complaint of Josephus, _against Apion_.――_Cicero_, _On Oratory_, bk. 1, chs. 28, 75, 126, & 130; _Letters to his Friends_, bk. 3, ltr. 16; _De Inventione_, bk. 1, ch. 81.――_Quintilian_, bk. 3, ch. 1; bk. 12, ch. 6.――_Suetonius_, _Cæsar_, ch. 4.――_Plutarch_, _Cæsar_.――――A Greek historian about the age of Augustus, who wrote upon the philosophy of Zeno and of his followers. _Strabo_, bk. 14.――――A Stoic philosopher, who attended Cato of Utica in his last moments. _Plutarch_, _Cato_.――――An officer set over Egypt by Alexander. _Curtius_, bk. 4, ch. 8.――――A wrestler. _Pausanias_, bk. 5.――――A physician of Pergamus, who wrote on agriculture. _Varro._――――A grammarian of Alexandria.――――A writer in the age of Antoninus Pius. ――――Thyaneus, a Pythagorean philosopher, well skilled in the secret arts of magic. Being one day haranguing the populace at Ephesus,