Ammonius, a Grecian philosopher, surnamed Saccas or the Sack-carrier, because his official employment was that of public porter of Alexandria, died A. D. 243. By some he is regarded as the founder of the later Platonic school. He numbered among bis pupils Lon-ginus, Plotinus, and Origen. According to his system of theological philosophy, God is primarily essence, and secondarily knowledge and power, the last two being developments of the first; the world is committed to the care of inferior divinities; and ascetic life leads to a knowledge of the infinite.