Titus Lucretius Carus (who died c. 50 BC) was an Epicurean poet writing in the middle years of the first century BC. His six-book Latin hexameter poemDe rerum naturasurvives virtually intact, although it is disputed whether he lived to put the finishing touches to it. As well as being a pioneering figure in the history of philosophical poetry, Lucretius has come to be our primary source of information on Epicurean physics, the official topic of his poem.