《汉书·传·扬雄传下》
当时扬雄在天禄阁上校书，办案的使者来了，要抓扬雄，扬雄怕不能逃脱，便从阁上跳下，差点死了。
时，雄校书天禄阁上，治狱使者来，欲收雄，雄恐不能自免，乃从阁上自投下，几死。
At that time, Yang Xiong was a Classics scholar in the Tianlu Pavilion. A messenger came to investigate the case, intending to arrest Yang Xiong. Yang Xiong feared that he would not be able to escape, and jumped from the pavilion, nearly killing himself.