There's no doubt Perelman is a man who takes his prenuptials very seriously: He refused to attend the wedding of his eldest son, Josh, because the bride didn't sign a prenup.

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Gates says Yamaguchi started out as an experiment in the politics of art and race: What would happen to his pots and bowls, which weren't selling so well, if he told people they were made by the mixed-race son of a Japanese master potter who had taught his methods to the neighbors of his black Mississippi bride?

WSJ: The Artist Next Door | Innovator of the Year 2012 Art