《太平广记·卷三百三十二·鬼十七》
开元年间，有个叫崔尚的，著有《无鬼论》，论述很有道理，已经成书。
答曰：冥中珍羞亦备，唯无浆水粥，不可致耳。
In the early years of the Kaiyuan era, there was a man named Cui Shang who wrote the "Theory of No Ghosts". The arguments in his dissertation were very reasonable, and the book had already been completed.