profess one thing, but mean another
It's a Chinese idiom. Pinyin is k ǒ UB ù y ì NGX ī n, which means that the heart and mouth are different. It's from the romance of the Western chamber, lady's marriage suspension.
Idiom explanation
Should: comply with.
The origin of Idioms
Wang Shifu, Yuan Dynasty, wrote in the romance of the Western chamber, lady's marriage suspension: "my mother is so shy."
Analysis of Idioms
Antonym: right and wrong in words and different in heart; antonym: do what you say and do what you say
Idiom usage
It is used as predicate, object and adverbial. Officer, you said that last night, but you didn't answer it. Do that! (Xing Shi Heng Yan, Volume 8, by Feng Menglong of Ming Dynasty)
profess one thing, but mean another
true feelings and real intention out of genuine friendship - zhēn qíng shí yì
conceal the true state of affairs from above and below oneself - qī shàng wǎng xià
A tired bird knows how to return - juàn niǎo zhī huán