《论衡·卷七·道虚篇》
八公之类的人想显示自己的神奇，装作好像修仙得道的样子。修道终究没有成功，没有效果，于是跟伍被策划谋反的事，事情被发觉而自杀。有人说是被处死。
《八公之传》欲示神奇，若得道之状，道终不成，效验不立，乃与伍被谋为反事，事觉自杀，或言诛死。
People like Bagong wanted to show their magic, pretending to be like cultivating immortals. Cultivation was unsuccessful and ineffective, so they planned a rebellion with Wu Bei. The matter was discovered and committed suicide. Some said they were executed.