The Treasure of the Ancient Emperor was printed for forty-five years (1780). When Emperor Qianlong celebrated his seventieth birthday, he thought he was the only wise monarch in history, so he specially wrote On the Ancient Emperor, saying, "I will do it seven times this year because I carved the Treasure of the Ancient Emperor with Du Fu's sentences, the second time. I am still very diligent, so I answered God and encouraged myself. " It shows that Emperor Qianlong is conceited but not complacent. In addition, it is engraved with the seal of "I am still diligent in Japan" as a supplementary chapter of "the treasure of the ancient emperor".