Too firm, too soft, just right

Back in America, the most common question people asked me when they learned I had agreed to teach in sub-Saharan Africa for a year was, "why do you want to do that?" I knew I had the answer somewhere inside. I felt it. But I could never grasp what that answer was. Something about perspective, understanding, experience, empathy, humanity, affluence, opportunity. I just couldn't organize that feeling and those ideas into a coherent thought. I still couldn't until tonight, when I watched this: