狗在背后烂嘴我们不值理会
[gŏu zài bèi hòu làn zuĭ wŏ men bù zhí lĭ huì]
In English this implies 'Ignore those who criticize or speak poorly behind your back'. It expresses the sentiment that one shouldn't waste time on negative comments made by people not worthy of attention. It conveys confidence and resilience against gossip and criticism.