《明史·列传·卷五十七》
南城人龚谦擅长妖术，胡淡举荐他任天文生，又举荐道士仰弥高通晓阴阳兵法，派他驻守边关，时论颇讥讽他。
南城人龚谦多妖术，濙荐为天文生，又荐道士仰弥高晓阴阳兵法，使守边，时颇讥之。
Hu Dan also recommended Gong Qian, a magician from Nancheng as an astronomer, and recommended the Taoist priest Yang Migao, who was skilled in the art of war, to guard the border, which was widely criticized at the time.