请君入瓮

Qǐng Jūn Rù Wèng

用别人设下的办法，反过来对付他自己。比喻以其人之道还治其人之身。

Invite someone into the jar they built themselves — to turn a person's own trick back on them.

唐táng朝cháo武wǔ则zé天tiān当dāng政zhèng的de时shí候hòu，有yǒu两liǎng个gè官guān员yuán叫jiào周zhōu兴xīng和hé来lái俊jùn臣chén，他tā们men都dōu以yǐ审shěn问wèn犯fàn人rén出chū名míng，手shǒu段duàn十shí分fēn狠hěn毒dú。

一yī天tiān，武wǔ则zé天tiān接jiē到dào密mì报bào，说shuō周zhōu兴xīng也yě暗àn中zhōng做zuò了le坏huài事shì，就jiù让ràng来lái俊jùn臣chén去qù审shěn问wèn他tā。来lái俊jùn臣chén心xīn里lǐ犯fàn难nán：周zhōu兴xīng很hěn精jīng，怎zěn么me才cái能néng让ràng他tā开kāi口kǒu呢ne？

于yú是shì他tā请qǐng周zhōu兴xīng来lái喝hē酒jiǔ。酒jiǔ过guò三sān巡xún，来lái俊jùn臣chén装zhuāng作zuò随suí口kǒu问wèn：“犯fàn人rén不bù肯kěn招zhāo供gōng，你nǐ有yǒu什shén么me好hǎo办bàn法fǎ？”周zhōu兴xīng得dé意yì地dì说shuō：“简jiǎn单dān！找zhǎo一yī个gè大dà瓮wèng，四sì周zhōu烧shāo上shàng炭tàn火huǒ，把bǎ人rén放fàng进jìn去qù，什shén么me都dōu肯kěn说shuō。”

来lái俊jùn臣chén听tīng完wán，马mǎ上shàng让ràng人rén抬tái来lái一yì只zhī大dà瓮wèng，周zhōu围wéi生shēng起qǐ炭tàn火huǒ，然rán后hòu对duì周zhōu兴xīng拱gǒng手shǒu说shuō：“有yǒu人rén告gào你nǐ谋móu反fǎn，请qǐng君jūn入rù此cǐ瓮wèng吧ba！”周zhōu兴xīng吓xià得de脸liǎn色sè发fā白bái，连lián忙máng跪guì下xià认rèn罪zuì。

从cóng此cǐ，人rén们men用yòng“请qǐng君jūn入rù瓮wèng”来lái比bǐ喻yù拿ná对duì方fāng自zì己jǐ想xiǎng出chū的de办bàn法fǎ，反fǎn过guò来lái对duì付fù他tā。

During the reign of Empress Wu Zetian of the Tang dynasty, there were two officials named Zhou Xing and Lai Junchen. Both were famous for their harsh ways of questioning prisoners.

One day the Empress received a secret report that Zhou Xing himself had been plotting something wicked, and she ordered Lai Junchen to investigate. Lai Junchen thought, “Zhou Xing is a clever man — how can I get him to confess?”

So he invited Zhou Xing for a drink. After a few cups of wine, Lai Junchen casually asked, “What do you do when a prisoner refuses to talk?” Zhou Xing answered proudly, “Easy! Bring a huge jar, light charcoal fires all around it, and put the man inside — he'll say anything you want.”

Lai Junchen at once had servants roll in a great jar and light the fires. Then he bowed and said, “Someone has accused you of treason. Please, sir, step into the jar.” Zhou Xing turned pale and dropped to his knees to confess.

Ever since, “please step into the jar” has meant turning a person's own nasty trick back on themselves.