In a recent Wall Street Journal interview, former basketball star and current angel investor Shaquille O'Neal said he "probably quadrupled" his net worth after adopting an investment strategy similar to Amazon founder and CEO Jeff Bezos.

O'Neal's personal investments include a 1999 investment in Google and a stake in Apple.

He told the Wall Street Journal that he "heard Jeff Bezos say one time [that] he makes his investments based on if it's going to change people's lives," and "once I started doing that strategy, I think I probably quadrupled what I'm worth."

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There's nothing average about former basketball star turned angel investor Shaquille O'Neal.

So when he says he "probably quadrupled" his net worth using a simple investing strategy, it's worth paying attention to.

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