Plotīnus

, a Platonic philosopher of Lycopolis in Egypt. He was for eleven years a pupil of Ammonius the philosopher, and after he had profited by all the instructions of his learned preceptor, he determined to improve his knowledge, and to visit the territories of India and Persia to receive information. He accompanied Gordian in his expedition into the east, but the day which proved fatal to the emperor, nearly terminated the life of the philosopher. He saved himself by flight, and the following year he retired to Rome, where he publicly taught philosophy. His school was frequented by people of every sex, age, and quality; by senators as well as plebeians, and so great was the opinion of the public of his honesty and candour, that many, on their death-bed, left all their po e ions to his care, and entrusted their children to him, as a superior being. He was the favourite of all the Romans; and while he charmed the populace by the force of his eloquence, and the senate by his doctrines, the emperor Gallienus courted him, and admired the extent of his learning. It is even said that the emperor and the empre Salon in a intended to rebuild a decayed city of Camp an i a, and to appoint the philosopher over it, that there he might experimentally know, while he presided over a colony of philosophers, the validity and the use of the ideal laws of the republic of Plato. This plan was not executed, through the envy and malice of the enemies of Plot in us. The philosopher, at last become helple and infirm, returned to Camp an i a, where the liberality of his friends for a while maintained him. He died A.D. 270, in the 66th year of his age, and as he expired, he declared that he made his last and most violent efforts to give up what there was most divine in him and in the rest of the universe. Amidst the great qualities of the philosopher, we discover some ridiculous singularities. Plot in us never permitted his picture to be taken, and he observed, that to see a painting of himself in the following age, was beneath the notice of an enlightened mind. These reasons also induced him to conceal the day, the hour, and the place of his birth. He never made use of medicines, and though his body was often debilitated by abstinence or too much study, he despised to have recourse to a physician, and thought that it would degrade the gravity of a philosopher. His writings have been collected by his pupil Porphyry. They consist of 54 different treatises divided into six equal parts, written with great spirit and vivacity; but the reasonings are abstruse, and the subjects metaphysical. The best edition is that of Picinus, folio, Basil, 1580.