Mo Ibrahim

When people said Africa would change me, I didn't understand what they meant. To see the poverty in the townships, for instance, is overwhelming. I found it heart-wrenching to see young children walking barefoot and hungry in the dirt. I'm the kind of person who wants to change the world right here and now, so I got frustrated.

I don't collect the way other people do. Some people collect rare guitars, like, 'I have a '54 Strat worth $50,000.' And I don't collect the way Nash does. Nash has Duane Allman's guitar and Johnny Cash's guitar. I bought guitars because they sounded good. I played them, they sounded unbelievably good, and I couldn't resist.

My venture investing career has three phases, all roughly 6-8 years long. The first, at Euclid, was software to Internet. The second, at Flatiron, was Internet to bubble. And the third, at USV, has been web 2 to mobile. I have always used a new firm to denote a new investment phase for me. Throw away the old. Start with the new.