心安理得 xīn’ān-lǐdé to have a clear conscience
to have a clear conscience; to have no qualms about something
How to remember 心安理得: 心 heart + 安 peace + 理 reason + 得 get = to have a clear conscience.
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How it is used
- Means feeling at ease because you're in the right - 拿了应得的报酬，他心安理得 (ná le yīngdé de bàochou, tā xīn'ān-lǐdé) he took his due pay with a clear conscience.
- Stresses moral justification behind the calm (理得 = the reasoning is sound), not just being relaxed.
- Can be neutral or mildly critical (feeling entitled); adverbial 心安理得地接受 (accept without qualms).