你走你的阳关道，我过我的独木桥 nǐzǒunǐdeyángguāndàowǒguòwǒdedúmùqiáo you go your way and I will go mine
Literally "you take the high road, I will cross the single-plank bridge"; used to express that two parties should each go their own way or follow their own methods without interfering with each other