In later projects, like the United States Embassy in New Delhi and his own Manhattan townhouse, Stone challenged modernist orthodoxy by adorning facades with ornamental screens that evoked Oriental design.
After numerous failed attempts at winning the championship, Triple H and Mankind challenged WWF Champion Stone Cold Steve Austin to a Triple Threat match at SummerSlam, which featured Jesse "The Body" Ventura as the special guest referee.
The crisis challenged the foundation stones of the long-dominant neoliberal ideology but it seemed to emerge largely unscathed.
Another new book, "Spies: The Rise and Fall of the KGB in America," by the American historians John Earl Haynes and Harvey Klehr and the Russian journalist Alexander Vassiliev, adduces evidence, challenged by Guttenplan, that Stone "worked closely with the K.G.B". in 1936-38.
If the fragility of jade makes it challenging to work the stone finely enough for a dial, using it for a case might seem to challenge all the stone's powers of good luck and protection.
"My heartiest blessing to the children of the stones, to the heroes of the stones," Arafat said, acknowledging that the stone-throwers who challenged Israeli soldiers in the streets had in practice succeeded where his guerrilla army had failed.
He saved the adultress described in John 8 by challenging the moral right of those about to kill her: "Let he who is without sin cast the first stone". No one challenged bright lines like Jesus.
To experience such moments one has to be pushed out of one's comfort zone, challenged, forced to confront the stone-cold reality that education is not meant to teach you what you already know.
On the other hand, I'm a little more sanguine that it could work for Spanish or Italian, languages that present the kind of challenges Rosetta Stone's building blocks seem designed around.
One army official told me that religious radicalisation was a "bigger challenge than stone pelting protesters".
