One of the richest men in Asia and a dominant figure in Hong Kong's economy, Ka-Shing started outworking everybody as a teenager en route to building a $21 billion empire.
By age 15, Ka-Shing had left school and was working in a plastics factory. He told Forbes how he quickly became a salesman, outsold everybody else, and became the factory's general manager by 19. In 1950, he started his own business and did almost everything, including the accounting, himself.