The most successful entrepreneurs have a belief in their businesses that can border on arrogance, like that of the world's wealthiest man, according to Africa's first black billionaire.

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According to an anecdote told to him by billionaire venture capitalist John Doerr, Musk was very arrogant and very cocky in an early pitch meeting.

I am not saying that entrepreneurs must be arrogant, but I think that Musk believed so much in what he was doing that he succeeded.

The first black billionaire in Africa, who became the continent's first black billionaire in 2008 thanks to a fortune amassed in the mining industry, said he faced significant pushback from investors who did not have the same blind belief in his vision to buy unsuccessful mines that later became the key to building.

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The most successful entrepreneurs in the world are the ones who were told when they started that this thing wouldn't succeed.

Big Number

$3 billion. According to the latest estimates by Forbes, he is the third wealthiest person in South Africa. The Confederation of African Football is the governing body for the sport.

Tangent

Musk was born in South Africa and moved to Canada at 17 years old. Musk founded and joined the electric vehicle maker at its early stages.

Africa's billionaires.