Max Levchin, Slide

Max Levchin is the co-founder of the e-commerce company PayPal, which was bought by internet auction giant eBay for $1.5 billion in 2002.

He went on to found Slide, which creates software applications for use on social networking sites such as Facebook.

Key advice

Don't embark on a start-up single-handedly.

"Being on your own is theoretically good because you have complete control and you feel that you really answer to no one but having the checks and balances of another person that you trust and ultimately respect telling you when you're full of it… is extremely valuable."

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