1, the past need not be described.
It is not the poet's duty to describe what has happened.
2. Predictability of the future.
Is to describe what may happen in the future.
3. Universality of the object described in poetry.
Children, nature, people.
4. The concreteness of the object described in the poem.
Concreteness is characterized by individuality, characteristics, sensibility and contingency, while generality is correspondingly characterized by wholeness, universality, rationality and inevitability.
Extended data
Poetics has incisive arguments and profound contents. Although the length is not long, it is very bearing and undoubtedly a masterpiece with weight and depth. Poetics discusses the relationship between human nature and artistic imitation, the composition of tragic art, the function of tragedy, the combination of plots and a series of theoretical issues worthy of attention.
Similarities and differences between tragedy and epic, etc. Some viewpoints put forward in Poetics, such as the viewpoint that plot is an imitation of action, and the viewpoint that poetry criticism should not apply the standard of criticizing politics, were of valuable innovative significance at that time. This immortal work reflects the essence of a new and mature poetic thought.