If I could tell my students how to choose a path of employment, I would emphasize that no effective writer, historian, athlete, musician, or scientist became such without dedicating themselves to some goal. For that to have taken place, however, the respective expert must have had a firm idea about why they were doing what they were doing. In other words, they must have had purpose. Karl Marx spent countless hours in English libraries, I would share, to understand the functioning of society in order to improve it; while Isaac Newton often went without food to gain a firmer grasp of the science of motion, and eventually revised that science. They did this because they had a clear purpose, a real reason for doing what they were doing that would affect others around them. I would communicate that whatever passion students tap into, it should be embarked upon with that kind of clear goal in mind. While they may not know which passions they have yet, I would emphasize that school is a time ...