春秋战国时(shí )期,庞(⛲)涓因妒忌(📼)孙膑精通(tōng )《孙子兵法》,唯恐其(qí )(🕰)被魏惠王重用(yòng ),一面派亲侄庞茅与诚儿侍奉(fèng )(💤)孙膑左(📿)右,一面却在(zài )惠王和太(tài )子面(miàn )(🚤)前(🖲)说(⚫)其坏(🕔)话。庞涓设下阴(yīn )谋,诬告孙膑与齐国私通,惠王欲(🛺)治孙膜死罪。庞(páng )涓欲得"兵法"真谛,假意(🔩)向惠王求请,孙膑被减(jiǎn )刑挖去膝(🎛)盖骨。孙膑(bìn )不明真相(🔝),将《孙子兵法》默写给(🙀)庞涓(💪)。庞涓想得到(dào )真(zhēn )谛后毒(dú )死(🔔)孙(🚻)膑,其用心(💠)被庞(⛳)茅、诚(🎋)儿揭(jiē )穿(chuān )。孙膑(🧣)被软(⚾)禁(jìn ),庞(👣)茅(máo )、诚(chéng )(🈁)儿与齐国使(shǐ )臣淳于凳将孙(sūn )腹救往齐国后,双(🌹)双(shuāng )死在庞(🥋)涓(juān )手下。齐(qí )(🌼)王(🚶)在(zài )孙膑智谋下(xià ),将进攻韩国(guó )的庞(📧)涓诱(😙)杀于马(mǎ )陵(líng )(🔤)道。