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人心隔肚皮

rén xīn gé dù pí
Natural meaning
You can't read someone's mind.

People's hearts are separated by the belly skin.

This saying means that you cannot truly know what another person is thinking or what their true intentions are. It warns against trusting others blindly.

This reflects the Chinese emphasis on caution in interpersonal relationships. It is often used in contexts of betrayal or deception, reminding people that appearances can be deceiving.

Someone might say this when a trusted friend betrays them, or when advising a younger person to be careful about sharing secrets.

This saying promotes vigilance and emotional self-protection. It acknowledges the complexity of human nature and encourages people to be discerning rather than naive.


A:I trust my business partner completely; we've been friends for years.
B:Just be cautious. 人心隔肚皮。You never truly know what others think.
C:Yeah, I've heard stories of betrayals even among close friends.
🟢 Cautious · Observational
It doesn't refer to actual belly skin; it's a metaphor for the barrier to understanding hearts.

After lending money to a colleague who disappeared, Lin sighed and told her sister, '人心隔肚皮,' realizing that outward kindness doesn't guarantee integrity. She became more discerning in her relationships from then on.
What is the meaning of 人心隔肚皮?
It means 'You can't read someone's mind,' highlighting the difficulty in knowing others' true thoughts.
When is this proverb used?
The saying reflects situations where trust is broken, advising vigilance in relationships.
Is it a pessimistic view?
Not necessarily; it's a realistic reminder to be discerning without being paranoid.
What English phrase is equivalent?
Similar to 'Still waters run deep' or 'Don't judge a book by its cover,' but focused on hidden motives.

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