Having spent many years studying the psychology of success in sports and business people, Angela Duckworth concluded that 'talent' is not what makes humans more likely to succeed. In fact it is a series of qualities she defines as 'grit' that set the successful apart.
Its not about how smart you are, how fit you are or about your talent it's about how grity you are.

Starting, Launching and Growing a startup is hard, founders that have Grit are the most likely to succeed.