Súyǔ bù sú.

俗語不俗。

Lit Common sayings are not “common” [i.e., lower class or vulgar].

Note [Note: suyu “proverbial expressions,” “common sayings” or “folk adages,” as opposed to chengyu “fixed phrase literary idioms” and geyan “maxims; aphorisms,” were traditionally looked upon by the literati as common and vulgar; note: yōngsú, “vulgar; philistine”; súqì, “vulgar; in poor taste.”]

Topics aphorisms chengyu common sayings folk adages literati maxims proverbial expressions SAYINGS súqì suyu VULGARITY yōngsú