I came across an inspiring story yesterday in print, and then found that there were TED talks. There are so many lessons to be drawn from this man's experience that it's almost hard to know where to start. Decide for yourself - here's the links to the two TED talks.
I recommend watching them in this order.
http://www.ted.com/talks/william_kamkwamba_on_building_a_windmill.html
http://www.ted.com/talks/william_kamkwamba_how_i_harnessed_the_wind.html
If these links someday don't work, simply Google his name, William Kamkwamba, and I'm sure you'll find inspiration.
