Passive learning creates knowledge. Active practice creates skills.

... but learning is not practice. Unless you apply that knowledge and make a meaningful contribution with it, passive learning is not a form of practice. 

Some of us use learning as a way to avoid doing the actual work toward reaching our goals. In this case, it becomes a form of procrastination.

New knowledge does not necessarily drive new results, especially if your goal is to make progress and not to simply gain additional knowledge.