女人别乱拔草男人别乱摘花
[nǚ rén bié luàn bá căo nán rén bié luàn zhāi huā]
Metaphorically speaking about the importance of respecting each other’s boundaries and value in a relationship—women are advised not to 'randomly uproot grass' and men are told not to 'casually pick flowers'. It promotes a mutual agreement on valuing each other.