Three-time world heavyweight boxing champion Muhammad Ali, known for his lyrical charm and boasts as much as for his powerful fists, has moved far beyond the boxing ring in both influence and purpose. Ali won an Olympic gold medal and later tossed it into a river because he was disgusted by racism in America. As a young man he was recruited by Malcolm X to join the Nation of Islam. He refused to serve in Vietnam--a professional fighter willing to serve time in jail for his pacifist ideals. He has contributed to countless, diverse charities and causes. And his later years have found him interested in world politics as he has battled to keep Parkinson's disease at bay.