expression, godan verb (-ru)
compromise one's principles; betray one's principles
Literary idiom meaning to bend or abandon one's moral stance. Originates from the Chinese classic 'Strategies of the Warring States'.
彼はどんなに困っても節を折るようなことはしなかった。
No matter how hard things got, he never compromised his principles.
節を折ってまで出世
I don't want to get ahead by betraying my principles.