People with clear, written goals, accomplish far more in a shorter period of time than people without them could ever imagine.
If you have a clear goal and a plan to achieve it, your focus is fixed on a set course of action. Instead of becoming sidetracked by distractions and diversions, your time is focused on a straight line from start to finish.
It doesn't matter where you came from, it doesn't matter how poor you are, it doesn't matter where your family was. It all doesn't matter. You can achieve anything if you have really clear goals and if you work really hard to learn what you need to learn.
Top people have very clear goals. They know who they are and they know what they want. They write it down and they make plans for its accomplishment.
Your ability to discipline yourself to set clear goals, and then to work toward them every day, will do more to guarantee your success than any other single factor.