Augustine "Og" Mandino II was an American author. He wrote the bestselling book The Greatest Salesman in the World. His books have sold over 50 million copies and have been translated into over twenty-five different languages.
It is those who concentrate on but one thing at a time who advance in this world. – Og Mandino
Failure will never overtake me if my determination to succeed is strong enough. – Og Mandino