Reaction to Diamond

     There are many ways of categorization as a race. However, Diamond want to say that it is impossible to categorize all people into races exactly. People tend to distinguish races by finding differences of physical traits, but the traits can be changed by various factors, like environment. He also argued why human traits vary from person to person. According to this text, the differences were produced by natural selection, sexual selexion and geography. In conclusion, people  should not codify all different features into racial classification.
     In my opinion, although race can help people understanding different features, it can produce racial discrimination. I think race is just first step to know other people, so people should undrstanding individual features are more important than dividing into a race.