Never look back
In Chinese, Pinyin is j ì B ù f ǎ ng ù, which means not to look back. It's the same as "no turning back". It comes from the reason why Jianchu was abolished.
The origin of Idioms
Fan Jingwen of the Ming Dynasty wrote in his book the reason why Jianchu was abolished: "when he spoke generously and didn't look back, I didn't know it was today!"
Analysis of Idioms
Don't look back
Never look back
do things that are against reason and nature - sàng tiān hài lǐ