a clever statement that communicates a truth
allegory
aphorism
diction
in medias res
metaphor
"A wise man learns more from his enemies than a fool does from his friends." - Allegory
"Actions speak louder than words." - Aphorism
"The choice of words can make or break a message." - Diction
"The story started in medias res, grabbing the readers' attention from the very beginning." - In medias res
"Love is a battlefield." - Metaphor