A powerful sense of self will make all the difference in your life. You must understand that your sense of yourself and your capabilities come from inside of you, not from the external forces that have brought you to your current place in life. What you feel internally might be completely different from what the world is telling you, and you must learn to focus on the former rather than the latter.

You, like everyone else, are naturally disposed to be either a dreamer, a manager, or a worker. Consequently, your happiness and success depends on whether you are doing the work that is suitable to your disposition; you may not be reaching your full potential in you are in the wrong role. Your success in both career and life depends largely on your ability to honor your nature.

In this article Harrison discusses the power of commitment. It is important to commit to your career, to a single employer or to anything for that matter. Not being committed to your career can have enormous ramifications. Commitment is key to any form of success. You should not do any sort of job that your heart is not in and that you cannot be committed to. Without a strong commitment you will not have the success you desire.

In this article Harrison discusses how it is important not to get influenced by negative behavior of people around you. One thing you often find is that there seem to be a great number of people out in the world whose chosen business is to make your life and circumstances, whatever they may be, seem much worse than they are. Your success and ability to get on will in large part be determined by your ability to sift through all of this negative information coming at you. It is important to understand that all around you there are people and forces that want you to feel weak, vulnerable and inadequate. The best thing you can do to control and fight back against these forces is to sniff out and identify these people for what they are–and then avoid them. Do not allow others to control or influence you.

You are rewarded in direct proportion to the value that you deliver, meaning that you have to deliver in order to reach your full potential. You will provide more value to others when you are focused on giving. People who under-deliver view their jobs as being primarily about them, while those who over-deliver see their jobs as being about others. Strive to develop a reputation for delivering rather than under-delivering.

In this article Harrison discusses the importance of being well-liked in your job. Being well-liked is necessary for success in any job and in advancing your career. If your co-workers or your superiors do not like you, your career in your organization may be doomed. If you are isolated from others within your organization, it is far easier to let you go in times of economic uncertainty. Harrison gives certain pointers to ensure that you are well-liked in your job. He talks about staying away from cliques, never saying anything bad about any co-worker, making your superiors feel important, listening instead of talking, participating in group activities and being non-confrontational. To advance, you need to keep out of trouble and be well-liked.

Your Invisible Power was the first book and by...