Nevertheless, " unconscious graceful Li Sha " in the center containing a lot of scientific elements really, just what they like to believe with the public is different, what be the secret thing of sedulous under cover. E.g. , " unconscious graceful Li Sha " showed Da Vinci is right clearly the interest of geoscience. Bach of cost human relations says: The backside of “ picture go-between is a coarse and primitive land, do not have what thing again in addition, this is returned at that time is a kind of very novel brushwork. This kind of brushwork shows Da Vinci is right of nature erode force and hydrogeology very have fun at. And we also know, he still has had thorough make a thorough inquiry to this. ” about cheating the smile of that mystery on face of graceful Li Sha, bach of cost human relations also has his view. He says: “ is very possible, this just is sitting because she is right for long to let person picture feel some were tired of, and Da Vinci plans to show this in the picture. ”