Traits are important because some people learn quickly and others are better at retaining their memories. Some people are shy and don't like talking to people, a trait that can change over time. Everyone can think of a time when they overcame a fear and that would be considered change. Once, I was overcoming the fear of being home alone with my family on vacation. I managed to overcome this fear by not going with them because I had a school that I couldn't miss. I was home alone for two weeks and I know it doesn't sound that bad, but I've never been alone before. Diversity and universality are somehow explained when we talk about people. All people are different, but if you look closely, you will discover that we are more alike than we think we see. If you think about it, we all breathe air, and blood circulates throughout our bodies. An example would be in the workplace when you and two of your colleagues are working. You can either force yourself to do the work the same way and get the same quality of work. One can also find the best place in the queue for the person specialized in their field.