📖 Meaning
Describes someone who appears gentle and yielding on the surface yet is actually firm and unyielding within. It can characterize a person with a soft exterior and a strong inner will, or refer to a strategy that hides hostile intent behind a friendly, reassuring facade.
📜 Origin Story
The idiom comes from the tenth stratagem, 'Hide a Knife Behind a Smile' (笑里藏刀), of the Thirty-Six Stratagems (三十六计), a classical Chinese military treatise traditionally attributed to General Tan Daoji of the Southern Dynasties' Liu Song dynasty (5th century), though the compiled text as known today circulated during the Ming dynasty (1368–1644). The passage instructs: 'Make the enemy trust you and feel secure, then secretly plot against him; be fully prepared before acting and give him no chance to change — this is to be firm within while soft without.' The idiom therefore originated as a description of the deceptive tactic of concealing one's true aggressive intent behind a gentle and reassuring exterior.
💡 Example Usage
他看似温和可亲，实则刚中柔外，内心极为坚定。
He seems warm and approachable, but he is firm within while gentle without—his inner resolve is extremely strong.
🏷️ Category
➕ Similar Idioms
➖ Opposite Idioms
🔤 Quick Facts
- Chinese: 刚中柔外
- Pinyin: gāng zhōng róu wài
- Literal Translation: hard, inside, soft, outside
- Category: Attitude
- Characters: 4