Much of this is going to be dependent on what you have already written and what it is that you need to prove. I do think that it is important to highlight how goals are needed and how they help to substantiate the progress individuals can make. In the end, it is the identification and realization of goals that help to define what marks "progress" and the notion of advancement. What we choose to identify as a goal is what we strive towards and it is to that end that we define and constitute success. I think that stressing this in any manner when discussing goals helps to allow the reader to understand their importance in any task and identifying what it takes to accomplish it.