According to Aaron Dorfman, "Since the Holocaust, the Jewish community's attitude toward preventing genocide has been summed up in the moral philosophy of 'Never Again.'"[1] What this meant was that the Jews would not allow themselves to be victimized.[17] The phrase has been used in many official commemorations and appears on many Holocaust memorials and museums,[3][4] including memorials at Treblinka extermination camp[2] and Dachau concentration camp,[18] as well as in commemoration of the Rwanda genocide.[19]