Everybody knows
As is commonly known; as everyone knows
Neutral
As everyone knows
None
This is an HSK chengyu
《玉娇梨》(Yù Jiāo Lí), a novel by 荑秋散人 in the Qīng Dynasty (清, 1644 - 1911)
This chengyu is from a line in the work listed in the "Origin" section above