generous with your criticism
Chinese idioms, Pinyin is B ù L ì NC ì Ji à o. The explanation is the kind words of not sparing one's own opinions, hoping to give guidance and asking others for advice. It comes from Lu Xun's book of two places.
The idiom comes from Lu Xun's "book of two places" Five: "but I believe that if you have any help, you will not hesitate to give me advice."
generous with your criticism
The exterior is not as strong as the interior - biǎo zhuàng bù rú lǐ zhuàng
a treaty concluded with the enemy who have reached the city wall - chéng xià zhī méng
The official of the heart thinks - xīn zhī guān zé sī
usages arise from common practice - xiāng shuài chéng fēng