Looking back at the past, one can always identify the mistakes that he or she did not know any better than to make at the time. You cannot get the “whole picture” of you life at any given time because you are currently living it; conversely, you can look at others and see things that will determine their future. You must use this outside perspective to your benefit, and frequently ask those around you about how they envision your life unfolding. Your allies will tell you the truth about yourself, good or bad, if you let them.

If you are good at one thing, then you need to make sure you develop a diversity of skills in case demand for your primary skill goes away. You need to shape yourself and your career to withstand all kinds of economic and other climates. Like the Greek Parthenon, you must have a strong foundation and project strength, supporting yourself with multiple pillars.

In this article Harrison discusses why associating with positive people is among the most important things you can do in your life. Positive people reinforce positivity and impregnate the environment with positive energy. Negative people sap your energy and make you feel that nothing is worth doing. Even a single negative person in a group of persons is enough to bring down the energy level of the entire group. In order to be happy and successful it is important to surround yourself with other people who are happy and successful. Positive energy spreads quickly–just as negative energy does. You life is valuable and your time is as well. The last thing you need in your career is to deal with another person’s constant negativity. Your career and life will change for the better when you surround yourself with positive people–and keep the negative ones away

The most successful people are often obsessed with and are incredibly knowledgeable about the minutiae of their work. You must concentrate and develop an understanding of the details that others “gloss over” for true happiness and success in your job. When looking for a job, you will find greater success by looking for openings in places that others overlook. Focusing on the small details will, in aggregate, bring you much greater success than focusing on the bigger picture, so start by tending to one detail at a time.