"I am rare, and there is value in all rarity; therefore, I am valuable." ― Augustine "Og" Mandino II Value From Augustine "Og" Mandino II Author Added on 1/23/2025 About Augustine "Og" Mandino II Og Mandino was an American author best known for the inspirational book The Greatest Salesman in the World. His books were widely read in motivational and self-development circles. Born: 1923-12-12 Died: 1996-09-03 View all quotes from Augustine "Og" Mandino II