Non omnis moriar (I won't die completly) and Exegi monumentum aere perennius (I've raised a monument more lasting than bronze) these were the most famous Horace's sentences ever said with regard to his work. He was one of the best Latin poets of the whole history of the literature. As Petrarca, Dante, Garcilaso de la Vega or John Milton, Horace wrote about how important is the nature and the environment, apart of his distaste of living in the city.
It started writing thanks to the orders of the emperor Augusto who wanted to honour to the gods Apolo and Diana.
After this, he started writing his poems imitating the ancient Greek poets, like Arquíloco or Hiponacte. They wrote about violence, politics, rich people and justice.
One of the famoust Latin sentence and poem was his Beatus ille (Happy that one...) which remember us how peacefull and quiet it is living in the field, avoiding the stress, the crowd and the hustle of the city.