Why do we do the things that we do??!!

there are just so many answers to this question that in the end there is no correct answer. No one actually knows why we do the things we do. Why do get frustrated over small little things? Why do we talk and act the way we do? Is it because of the experiences we have faced or is it just our nature to do the things we do. Everyone is unique, we are all different, and we all do different things. The things we do might be because of the way we are brought up by our parents or the environment we grew up in. It also just maybe our human instinct for survival and we just adapt to fit into to our surroundings. Then there also may be our sub conscience telling us what to do and we don't realize it. Another factor also may be our culture and religion. As Mr Anthony gave an example in class that there were 2 people from different countries (don't remember exactly from where)and both of them had a different distance in which they usually had a conversation. One liked to have it close and the other abit distance away. So one would move closer and the would just keep moving further away. So that shows that people from different cultures are comfortable about deferment things. I also believe that most human beings are selfish and they do the things they do to benefit themselves either directly or indirectly.