different hearts in different breasts—It's hard to tell what's going on in the minds of other people. or People should always be on guard against one another.

different hearts in different breasts—It's hard to tell what's going on in the minds of other people. or People should always be on guard against one another.

The heart is separated from the belly (R é nx ī ng é D ù P í).

Idiom explanation

It means that one's mind is hard to guess.

Idioms and allusions

The fourth chapter of the complete biography of Shuoyue written by Qian Cai in Qing Dynasty: "tigers and leopards can't afford to ride, and people's hearts are separated from their bellies. Don't tell me what's in your heart and how to make friends with them (2) Duanmu Hongliang's "Cao Xueqin" as the saying goes: it's hard to draw a tiger's skin, but it's hard to draw a bone. It's similar to this

Discrimination of words

However, there are some things I can't think of. This may be a grand banquet, people are separated from each other, no one can say clearly, or be careful.