Prof. Muhammad Yunus’ Nobel lecture is available here; link via Sepia Mutiny (the other Mutiny :-):
I became involved in the poverty issue not as a policymaker or a researcher. I became involved because poverty was all around me, and I could not turn away from it. In 1974, I found it difficult to teach elegant theories of economics in the university classroom, in the backdrop of a terrible famine in Bangladesh. Suddenly, I felt the emptiness of those theories in the face of crushing hunger and poverty. I wanted to do something immediate to help people around me, even if it was just one human being, to get through another day with a little more ease. That brought me face to face with poor people’s struggle to find the tiniest amounts of money to support their efforts to eke out a living. I was shocked to discover a woman in the village, borrowing less than a dollar from the money-lender, on the condition that he would have the exclusive right to buy all she produces at the price he decides. This, to me, was a way of recruiting slave labor.
I decided to make a list of the victims of this money-lending “business” in the village next door to our campus. When my list was done, it had the names of 42 victims who borrowed a total amount of US $ 27. I offered US $ 27 from my own pocket to get these victims out of the clutches of those money-lenders. The excitement that was created among the people by this small action got me further involved in it. If I could make so many people so happy with such a tiny amount of money, why not do more of it?