Jan 3, 2008. Just outside the city he rented some buildings and established his own school, the Lyceum, where he lectured, wrote, and discussed philosophy with his. Aristotle's universe is finite, eternal, and geocentric: a stationary earth surrounded by concentric spheres that carry the sun, moon, planets, and stars in. Quotes Quotations from Aristotle are often cited by Bekker numbers, which are keyed to the original Greek and therefore independent…