However, they play a key role in the formation of personal identity. Humans, as members of the mammalian class, are one of the very few species that raise their young. According to the National Wildlife Federation, fewer than ten percent of all mammals raise their own young. This means that parents of less than ten percent of mammal species teach their children survival skills and social acceptability. Most human beings raise their children to be educated, educated and socially accepted according to the norms of society. As we grew up, life changed us and shaped our character and way of thinking. Our thoughts are not our own, they are based on the influences of our surroundings and other influences. For example, if an adolescent is raised by parents and has friends who are New England Patriots fans, it is likely that when the adolescent becomes an adult, that person will most likely have a positive bias for the New England Patriots. As children grow up, they are sent to school to learn and regurgitate what society has accepted as truth. People's thoughts are shaped by their surroundings and their upbringing, and are therefore not their own