春(🈯)秋战国(🌠)时期,庞涓因妒(dù )忌孙膑精(🐌)通(🍩)《孙子兵法(😘)》,唯恐(kǒng )其被(bèi )魏惠王重用,一(🆖)面派(🐉)亲侄庞茅(máo )与(yǔ )诚儿侍(🥩)奉(fèng )孙膑(bìn )左右(yòu )(🌫),一面却在惠(🌗)王和太子面(🚤)前说其坏(huài )话。庞(páng )涓设下(xià )阴谋,诬告孙膑与齐(🥄)国(guó )私(sī )通,惠王欲治孙(🎿)膜(🎫)死(sǐ )(🥞)罪。庞(páng )涓(✖)欲得"兵法"真谛,假意(yì )向(xiàng )惠王求请,孙膑(🖲)被减刑(💱)挖(wā )(🦗)去膝(🎛)盖骨。孙膑不明(míng )(🙂)真相,将《孙子兵(bīng )法》默写(👓)给庞涓。庞涓想得到真谛后(hòu )毒死孙膑,其用心被庞茅、诚儿(🥕)揭穿。孙膑(bìn )(🧣)被软(ruǎn )禁,庞茅、诚儿与(yǔ )(💝)齐(💹)国使(shǐ )臣淳(🍑)于凳将孙腹救往(wǎng )齐国后,双(🌹)双死(🐨)在庞涓手下(xià )。齐王在孙膑智谋下,将(jiāng )进攻韩(🐡)国(guó )的庞(📧)涓诱(yòu )杀于马陵(líng )道。