A Scientist's Death - What Are the Little Motivating Moments?

A student in your dorm got brain cancer, and you witnessed his degeneration and eventual unfortunate death. That was he pivotal moment for you. I went through a period of soul searching, but ultimately came out on the other end feeling like i'd made a good decision. You see what happens to your patients, then you are in the lab trying to figure it out at its most basic level.