Poetry is finer and more philosophical than history; for poetry expresses the universal, and history only the particular.Aristotle
Hence poetry is something more philosophic and of graver import than history, since its statements are rather of the nature of universals, whereas those of history are singulars.Aristotle
The poet, being an imitator like a painter or any other artist, must of necessity imitate one of three objects - things as they were or are, things as they are said or thought to be, or things as they ought to be. The vehicle of expression is language - either current terms or, it may be, rare words or metaphors.Aristotle
When power leads man toward arrogance, poetry reminds him of his limitations. When power narrows the area of man's concern, poetry reminds him of the richness and diversity of existence. When power corrupts, poetry cleanses.John F. Kennedy