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Uploaded on Aug 19, 2011
Stubbornly optimistic, entrepreneurs believe they can make a difference, in spite of the odds. And they don't stop at just thinking these innovative thoughts -- entrepreneurs then create new organizations to make the changes they want to see in the world. And by doing so, they inspire others to follow.
Before quitting his job as manager of a hedge fund to run the Khan Academy full time, Sal also found time to get three degrees from MIT and an MBA from Harvard. Today, Khan Academy's library of videos covers K-12 math, science topics such as biology, chemistry, and physics, and even reaches into the humanities with playlists on finance and history.