PISA, ITALY - OCTOBER 18:  Students of the Scuola Normale Superiore di Pisa show their diplomas at a ceremony celebrating the 200th anniversary of the founding of the school on October 18, 2010 in Pisa, Italy. The Scuola Normale Superiore di Pisa is one of the most prestigious research and training centers in Europe. The university, created to give the best students, regardless of social background, better opportunities, has produced Nobel laureates, presidents, writers, scientists and economists.  (Photo by Laura Lezza/Getty Images)