That sentence is a motto.

A motto is the essence of one person’s wit, the wisdom of many. The motto requires positive content, which can be the wisdom of smart people or the experience of the elderly. Motto is a concise and concise statement that can be used as a standard for people's behavior. From the perspective of syntactic structure, aphorisms are relatively complete and independent sentences that can be used to express thoughts independently.

Quotations are famous words said by famous people. It is more classic so that everyone can remember it, and there is no requirement on the content.