act impulsively
Chinese idiom, Pinyin is B ù zh ī L ì h à I, which means not knowing what is beneficial or harmful. It comes from Zhuangzi's Qi Wu Lun.
The origin of Idioms
Zhuangzi's theory of Qi Wu: "if Zi doesn't know what's at stake, is it true that people don't know what's at stake?"
Idiom usage
In Qing Dynasty, Chu people won the 49th chapter of the romance of the Sui and Tang Dynasties: "Dou Jiande didn't know what to do, so he led a heavy army to invade our territory."
act impulsively
East wind overwhelms west wind - dōng fēng yā dǎo xī fēng
broadening one 's intellectual horizon and keeping within the bounds of propriety - bó wén yuè lǐ
invite to one 's side men of wisdom and valor - zhāo xián nà shì