What Wu Zetian said before leaving is now impossible to verify, but whether the world comments or not you say should be related to the wordless tablet she set up for herself. Tang Gaozong Li Zhi and Wu Zetian were buried together in Ganling. Two huge stone tablets stand side by side in front of the mausoleum. The one in the west is called "sacred tablet", and the one in the east is Wu Zetian's "wordless tablet".

The first view is that Wu Zetian's "tablet without words" is used to brag and show his boundless merits.

The second view is that Wu Zetian set up a "wordless tablet" because she knew that she was guilty of a heinous crime and felt that it was better not to write an inscription.

The third view is that Wu Zetian left a tablet without words for future generations to comment freely.