act on impulse
The Chinese idiom is ch à NGX à NGW à NGW é I. It means acting out of character.
Yang Yinyu once published a strange theory that "school is like family". That is to say, the school is like a feudal family. The headmaster is the parent and has the right to act recklessly. (Lu Xun's in memory of Liu Hezhen)
act on impulse
be contented in poverty and devoted to things spiritual - jūn zǐ gù qióng