We humans are all the same. We attempt to define ourselves through the people we hang out with and the things we own. However, if a human had to be stripped of all things that are external to the basics of who he or she is, essentially every person would discover that there isn't much that makes him different from the next.
Many times we are unaware of the ways in which that we are being influenced, and this effects decisions that are made both consciously and subconsciously. We fabricate memories and deceive ourselves without being aware. We ignore logic and overestimate our ability to judge ourselves and our decisions.