Titus Lucretius Carus (c. 99 B.C.E. - 55 B.C.E.) was a Roman poet and Epicurean philosopher. During the first century B.C.E. he wrote De Rerum Natura (“On the Nature of Things”), a masterpiece of Latin verse which sets out in careful detail the Epicurean worldview. Beginning with a tribute to Epicurus, the six books of De Rerum Natura provide a full explanation of the physical origin.