"Let's Do It"

Knowledge on how to do something is useless unless we apply it in our lives. For example, I hear about a lot of people studying many subjects on college but never end up going into that subject. I suppose they could have taken the course simply because they enjoy learning about the subject, but I don't see why you would just leave it at what you learned without further exploring it. Most of the time I think it's our laziness that is the problem, we just aren't willing to put the work into using the knowledge we've gained. However, we have to learn to force ourselves to apply that knowledge in our lives if we want to live how we are supposed to.