There are people who have such a high moral standard:Grigory Perelman, a reclusive Russian mathematics genius who made headlines earlier this year for not immediately embracing a lucrative math prize, has decided to decline the cash. Perelman's decision was announced Thursday by the Clay Mathematics Institute in Cambridge, Mass., which had awarded Perelman its Millennium Prize. The award honors his solving of the Poincare (pwan-kah-RAY) conjecture, which deals with shapes that exist in four or more dimensions. Jim Carlson, institute president, said Perelman's decision was not a complete surprise, since he had declined some previous math prizes. http://www.msnbc.msn.com/id/38...