Noble...

Mark Twain once said "it is noble to teach oneself, but it is nobler to teach others".
Today, I tried to do the "nobler" thing and help another colleague. We were not friends, in fact, it was the first time for me to meet her. Yet, for some reason, I agreed to tutor her for two and a half hours. By doing that, I wasted two and a half hours that I could have spent studying for my midterm tomorrow. However, when I was helping her, I noticed something about her. When she all of a sudden realized that what I was explaining actually made sense,  a wide smile would appear on her face and her eyes would sparkle. Somehow, that made me so proud of what I was doing. It made me feel like I am finally making a difference in the world, no matter how insignificant it seemed. It made me feel ... Noble!