Jonathan Jones of the English newspaper, The Guardian, provides another description: Moses's right hand protects the stone tablets bearing the Commandments; his left hand, veins throbbing, muscles tense, appears to be holding back from the violent action. When he came down from Mount Sinai, Moses found his people worshipping the Golden Calf - the false idol they had made. His anger defies the prison of stone, the limits of the sculptor's art. Few can resist the impression of a real mind, real emotions, in the figure that glares from his marble seat. Today, he glares at the tourists who mob the church of San Pietro in Vincoli, Rome. He outfaces them, just as he outfaced Sigmund Freud, who spent three weeks in 1913 trying to figure out the sculpture's emotional effect. Moses's vitality has made this work popular since the 16th century; according to Vasari, Rome's Jewish population adopted the statue as their own. Its power must have something to do with the rendition of things that should be impossible to depict in stone; most quirkily, the beard - so ropy and smoky, its coils gave fantastic, snaking life. But where others might astonish us with technique, Michelangelo goes beyond this, leading us from formal to intellectual surprise, making us wonder why Moses fondles his beard, why Michelangelo has used this river of hair - in combination with the horns that were a conventional attribute of Moses - to give him an inhuman, demonic aspect.