say yes and mean no
The word of mouth is a Chinese idiom, Pinyin is k ǒ ush ì x ī NF ē I, which means that what the mouth says is inconsistent with what the heart thinks. It is often used as a derogatory meaning in daily life. It comes from Huan Tan's new theory, differentiation and confusion in Han Dynasty.
The origin of Idioms
Huan Tan of the Han Dynasty wrote in his new treatise on differentiation of doubts: "if it is not the person, the person whose mouth is right but whose heart is not, though he can't understand it, the way still can't come out." "Baopuzi · Weizhi" said: "right and wrong, back to different words."
Idiom usage
My brother turned out to be, not a good man. The seventy third chapter of Water Margin by Shi Naian in Ming Dynasty
say yes and mean no
shoulder to shoulder and hub to hub - mó jiān jī gǔ
harm the country and bring calamities on the people - wù guó yāng mín
fearful winds and dreadful waves - jīng fēng hài làng