清道光十九年己亥,公元1839年,时年四十八岁的龚自珍(定盦)以一种独特的方式告别了京师北京。在自谦为龚自珍“同县后学”的吴昌绶所编订的《定盦先生年谱》中留下了这样一笔:“先生官京师,冷署闲曹,俸入本薄,性既豪迈,嗜好奇客,境遂大 Qing dynasty nineteen years already Hai, AD 1839, when forty-eight-year-old Gong Zizhen (Ding Yi) bid farewell to the capital Beijing in a unique way. In the self-modement for Gong Zizhen ”after school “ Wu Changshou compiled by the ”set Mr. Ding Chronicles“ left such a: ”Mr. Guan Jingshi, cold department idle Cao, pension into the thin, sex both Heroic, addicted to strangers, territory big