Can you name the professional boxer who's career record was 51 wins 8 losses and ....?

who authored over 100 books published in 20 languages with his books being made into 45 feature films and television movies. There are nearly 230 million of his books in print world wide, and he is one of the most successful writers in modern literary history. In 1983 he was awarded the Congressional Gold Medal in honor of his life's achievment by the U.S. Congress and in 1984 the medal of freedom by President Ronald Reagan. Obviously boxing didn't seriously effect this boxer's intellect, at the time of his death on June 10th, 1988 his personal library contained over 17,000 volumes. Who is this American ring and literary giant?