rén​xīn​bù​gǔ

public morality has declined

Senses

人心不古 rén​xīn​bù​gǔ public morality has declined

(idiom) people's hearts are no longer as honest and kind as in the past; used to lament that modern moral standards have fallen compared to ancient times

References

synonym 世风日下/世風日下 人心不古/人心不古