Geras's literary theory works are written in the form of poems.

The works written by Horace in the form of poetry are poetic art. ..

"The Art of Poetry" is a poem letter to the Roman aristocrat Piso and his son, with 476 lines. Combined with the current situation of Roman literature and art at that time, the letter put forward the principles of poetry and drama creation.

"Poetic Art" holds that works should conform to natural creation and be close to reality; Second, it must conform to the psychology of the audience and meet expectations; Third, it should conform to the laws of art and be used moderately. Based on this, a general principle is put forward: appropriateness is rationality. The art of poetry embodies a realistic spirit of seeking novelty in inheriting tradition. It inherited Aristotle, started the end of the Renaissance and later classicism, and had a far-reaching influence on the literary creation from16th century to18th century, especially the creation of drama and poetry.

Excerpts from the original text of poetic art

My friends, many of our poets have been led astray and listened to the idea of "hard work". I try my best to write short, but it's obscure. I pursue simplicity, but I find myself losing my passion and energy.

A poet wants to write a magnificent poem, but it turns out to be bloated and grandiose. Another situation is that he spreads his wings too carefully and never leaves the ground. Others turn the monotonous theme of an ordinary thing into various tricks, for example, drawing a dolphin in the Woods and a wild boar in the waves. If a person does not understand art, in order to avoid small mistakes, it will lead to serious defects.