How are aphorisms used?
Usually as witty sayings to remember definitions.
An aphorism is a brief sentence or phrase that expresses an opinion or makes a statement of wisdom. Spoken or written, aphorism literally means “definition” and the term was first coined by Hippocrates in his work entitled Aphorisms.
Discussion and Examples here:
Absence makes the heart grow fonder.
Actions speak louder than words.
All for one and one for all.
All that glitters is not gold.
All the world's a stage.
All things come to he who waits.