Quan tám cũng ừ, quan tư cũng gật

Direct English translation

The mandarin of eight also says yes, the mandarin of four also nods.

Equivalent English version

He who says yes to everyone says yes to nothing

Giải thích tiếng Việt
Chỉ thái độ xuề xòa, dễ dãi, việc cũng cho qua sao cũng được. Cũng dùng để chê người ba phải, thiếu chủ kiến, ai nói sao cũng thuận theo.
English explanation
Refers to an overly easygoing, indiscriminate attitude in which anything is accepted and everything is treated as good enough. It is also used to criticize someone who is wishy-washy and has no firm opinion, agreeing with whoever speaks.